Hard / Factory reset iPad 3 without device password and iTunes
Yes, you can reset the iPad by booting into recovering mode.


Turn off your iPad
Connect your iPad to your computer while holding the Home button. Keep holding the Home button until you see the recovery-mode screen
iTunes will show a display an alert message saying it's detected an iPad in recovery mode. 
When you see the option to Restore or Update, choose Restore. Keep in mind a factory reset will erase ALL DATA!!
Set up as new iPad