The orange portal is at the bottom of the pit, so you'll need to find somewhere to put a blue one.
Hmm...
If you want to cross the pit, you'll need plenty of height.
Look up, and shoot a portal onto the white panels near the ceiling.
You can then jump down into the orange portal.
You almost reached the exit elevator, but not quite. Luckily, the white panels have moved forward slightly.
How does that help me?
If you shoot a portal onto them and jump through the orange portal again, you'll reach the exit.
Guide help
This is the low-spoiler guide for "Flinging yourself to victory" puzzle in Portal. Unlike in normal walkthrough, you get gradual hints on how to solve the puzzle. Click the big button below to see your first hint. If the hint contains a spoiler, you will be warned about it before clicking.
Hi! I have written video game guides since 2018. Any money I make here will go towards improving my equipment so I can make the things you enjoy even better (and faster!)