Zaheer Kachwala / Reuters: Seagate reports Q3 revenue up 44% YoY to $3.11B, vs. $2.96B est., and forecasts Q4 revenue and adjusted EPS above estimates; STX jumps 13%+ after hours  —  Seagate Technology (STX.O) forecast fourth-quarter revenue and profit above Wall Street expectations on Tuesday, betting on strong demand …