So, you are turning right at a roundabout, third exit. It can’t be that hard. Approach on the right lane with your right indicator. Go around the inside of the roundabout. As you go past the second exit, check your left mirror, switch to your left indicator, then drift over to the left. Simple. Or is it? What if the roundabout has two exit lanes? What if the roundabout has two possible lanes on approach for turning right?
The chances are that if a roundabout has two approach lanes for a given exit, then the exit will also have two lanes. In that case its important that you exit on the same lane that you enter. Do not change lanes on the roundabout. If you enter on the left lane, then take the outside path around the roundabout and exit on the left lane (blue arrow in picture). If you enter on the right lane, then take the inside path around the roundabout and exit on the right lane (red arrow in picture). When its safe to do so, move over to the left lane leaving the right lane for overtaking.
Poor lane discipline on roundabouts is a major reason for failing the driving test. Don’t get caught out.