Finding the Third Proportional to 664,767 and 996,892.31

Step by Step Solution

1. Step 1: Write the proportion equation
   664,767 : 996,892.31 = 996,892.31 : x
2. Step 2: Convert to fraction form
   664,767/996,892.31 = 996,892.31/x
3. Step 3: Cross multiply
   664,767x = 996,892.31 × 996,892.31
4. Step 4: Simplify right side
   664,767x = 993,794,282,721.60
5. Step 5: Solve for x
   x = 993,794,282,721.60/664,767
6. Step 6: Final answer
   x = 1,494,951.29