Finding the Third Proportional to 357,697 and 484,057.50

Step by Step Solution

1. Step 1: Write the proportion equation
   357,697 : 484,057.50 = 484,057.50 : x
2. Step 2: Convert to fraction form
   357,697/484,057.50 = 484,057.50/x
3. Step 3: Cross multiply
   357,697x = 484,057.50 × 484,057.50
4. Step 4: Simplify right side
   357,697x = 234,311,663,306.25
5. Step 5: Solve for x
   x = 234,311,663,306.25/357,697
6. Step 6: Final answer
   x = 655,056.27