Finding the Third Proportional to 648,229.78 and 1,400,321.53

Step by Step Solution

1. Step 1: Write the proportion equation
   648,229.78 : 1,400,321.53 = 1,400,321.53 : x
2. Step 2: Convert to fraction form
   648,229.78/1,400,321.53 = 1,400,321.53/x
3. Step 3: Cross multiply
   648,229.78x = 1,400,321.53 × 1,400,321.53
4. Step 4: Simplify right side
   648,229.78x = 1,960,900,390,882.34
5. Step 5: Solve for x
   x = 1,960,900,390,882.34/648,229.78
6. Step 6: Final answer
   x = 3,025,008.18