The road to profitable growth could make this rideshare giant a big winner.It's been a bit over five years since Lyft (LYFT -1.69%) had its initial public offering. Unfortunately, the stock has disappointed investors, trending lower over the last several years. The rideshare giant hasn't quite been able to live up to high-growth expectations, falling behind competitors in a volatile macroeconomic environment.That being said, there are several reasons to believe this bumpy ride could still steer toward a mor ...