Start on specific place on UIScrollView

I would like to know if there is a way to center a UIScrollview, if you will. Let me explain: I've made a ScrollView and connected it to some view controllers so that I can slide back forth, similar to as you would in snapchat. I have 3 view controllers. I wanted to know if there was a way that I could start off in the center view controller (Viewcontroller 2 or the "middle" view controller) instead of always starting on the very left. Thank you for the help.