Finding the Third Proportional to 317,206.50 and 748,545

Step by Step Solution

1. Step 1: Write the proportion equation
   317,206.50 : 748,545 = 748,545 : x
2. Step 2: Convert to fraction form
   317,206.50/748,545 = 748,545/x
3. Step 3: Cross multiply
   317,206.50x = 748,545 × 748,545
4. Step 4: Simplify right side
   317,206.50x = 560,319,617,025
5. Step 5: Solve for x
   x = 560,319,617,025/317,206.50
6. Step 6: Final answer
   x = 1,766,419.09