Aug 15 (Reuters) - Australia's Nearmap Ltd on Monday said it received a A$2.10 cash proposal from private equity firm Thoma Bravo L.P, valuing the aerial imagery company at A$1.06 billion ($754.61 million). ($1 = 1.4047 Australian dollars) (Reporting by Harish Sridharan in Bengaluru; editing by Diane Craft)