Increase size in dev/sda

Alright People be nice. First question here. I tried to search on blogs but could get anywhere.

I am using debian which is on vmware so case may be little different.

Situation :

This is machine setup in vmware environment in data center, So i can not put bootable disk.

Have two option :

1: resizing same dev/sda1 partition which seems impossible. So I have decided to do option 2.

2 : add another partition with remaining of disk space

Have already increased size on vmware to 300 GB (also tried adding another disk 1st 30 gb, second 200 gb)

+++++++++++++++

less /proc/version

Linux version 3.16.0-4-amd64 (debian-keel@lists.debian.org) (gcc version 4.8.4 (Debian 4.8.4-1) ) #1 SMP Debian 3.16.7-ckt20-1+deb8u2 (2016-01-02)
/proc/version (END)


root@Penxxy3:/# df -h
Filesystem                        Size  Used Avail Use% Mounted on
/dev/sda1                          29G   29G     0 100% /
udev                               10M     0   10M   0% /dev
tmpfs                             1.6G   29M  1.6G   2% /run
tmpfs                             4.0G   12K  4.0G   1% /dev/shm
tmpfs                             5.0M     0  5.0M   0% /run/lock
tmpfs                             4.0G     0  4.0G   0% /sys/fs/cgroup
10.224.0.124:/data/backups/xxmer   11T  521G   11T   5% /homer
tmpfs                             801M  4.0K  801M   1% /run/user/1000
root@PentahoSy3:/#

++++++++++++++

Command (m for help): p

Disk /dev/sda: 300 GiB, 322122547200 bytes, 629145600 sectors   <<<<< 300 GiB
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x8476ef5a

Device     Boot    Start      End  Sectors  Size Id Type
/dev/sda1  *        2048 60262399 60260352 28.8G 83 Linux
/dev/sda2       60264446 62912511  2648066  1.3G  5 Extended
/dev/sda5       60264448 62912511  2648064  1.3G 82 Linux swap / Solaris


Command (m for help): m



Command (m for help): n
Partition type
   p   primary (1 primary, 1 extended, 2 free)
   l   logical (numbered from 5)
Select (default p):

Using default response p.
Partition number (3,4, default 3):
First sector (60262400-629145599, default 60262400):
Last sector, +sectors or +size{K,M,G,T,P} (60262400-60264445, default 60264445):

Created a new partition 3 of type 'Linux' and of size 1023 KiB.

Command (m for help): p
Disk /dev/sda: 300 GiB, 322122547200 bytes, 629145600 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x8476ef5a

Device     Boot    Start      End  Sectors  Size Id Type
/dev/sda1  *        2048 60262399 60260352 28.8G 83 Linux
/dev/sda2       60264446 62912511  2648066  1.3G  5 Extended
/dev/sda3       60262400 60264445     2046 1023K 83 Linux
/dev/sda5       60264448 62912511  2648064  1.3G 82 Linux swap / Solaris

Any idea how can i add another partition with rest of 260 odd GB ?