Finding the Third Proportional to 459,052.31 and 645,301.69

Step by Step Solution

1. Step 1: Write the proportion equation
   459,052.31 : 645,301.69 = 645,301.69 : x
2. Step 2: Convert to fraction form
   459,052.31/645,301.69 = 645,301.69/x
3. Step 3: Cross multiply
   459,052.31x = 645,301.69 × 645,301.69
4. Step 4: Simplify right side
   459,052.31x = 416,414,267,890.35
5. Step 5: Solve for x
   x = 416,414,267,890.35/459,052.31
6. Step 6: Final answer
   x = 907,117.24