Finding the Third Proportional to 517,725 and 784,606.50

Step by Step Solution

1. Step 1: Write the proportion equation
   517,725 : 784,606.50 = 784,606.50 : x
2. Step 2: Convert to fraction form
   517,725/784,606.50 = 784,606.50/x
3. Step 3: Cross multiply
   517,725x = 784,606.50 × 784,606.50
4. Step 4: Simplify right side
   517,725x = 615,607,359,842.25
5. Step 5: Solve for x
   x = 615,607,359,842.25/517,725
6. Step 6: Final answer
   x = 1,189,062.46