How fast must Lilly grow to justify a 54.5 P/E ratio?Stock of Eli Lilly (LLY 8.32%), the famed Indianapolis pharmaceuticals giant, jumped 8.3% through 12:45 p.m. ET after the company reported a massive earnings beat this morning.Heading into the quarter, Wall Street analysts forecast Lilly would earn $2.60 per share on sales of$9.9 billion. Instead, Lilly reported a blockbuster $3.92-per-share profit, and sales of$11.3 billion. Eli Lilly's Q2 earningsHow did Lilly do that? Three words: Mounjaro, Zepbound, ...