Finding the Third Proportional to 664,681 and 1,449,665

Step by Step Solution

1. Step 1: Write the proportion equation
   664,681 : 1,449,665 = 1,449,665 : x
2. Step 2: Convert to fraction form
   664,681/1,449,665 = 1,449,665/x
3. Step 3: Cross multiply
   664,681x = 1,449,665 × 1,449,665
4. Step 4: Simplify right side
   664,681x = 2,101,528,612,225
5. Step 5: Solve for x
   x = 2,101,528,612,225/664,681
6. Step 6: Final answer
   x = 3,161,710.07