Finding the Third Proportional to 747,664 and 1,644,792

Step by Step Solution

1. Step 1: Write the proportion equation
   747,664 : 1,644,792 = 1,644,792 : x
2. Step 2: Convert to fraction form
   747,664/1,644,792 = 1,644,792/x
3. Step 3: Cross multiply
   747,664x = 1,644,792 × 1,644,792
4. Step 4: Simplify right side
   747,664x = 2,705,340,723,264
5. Step 5: Solve for x
   x = 2,705,340,723,264/747,664
6. Step 6: Final answer
   x = 3,618,391.05