Each Rider's Third Completed Trip

Uber's loyalty team triggers a reward on a rider's third completed trip. Only trips with status = 'completed' count toward the sequence; cancelled trips are skipped. Trips are ordered by requested_at, and when two trips have the same requested_at, the lower trip_id comes first. Note that trip_id does not always follow time order. Riders with fewer than three completed trips are left out. Write an SQL query that returns rider_id, trip_id and fare for each rider's third completed trip. Order the results by rider_id ascending.