Finding the Third Proportional to 318,217.50 and 466,632

Step by Step Solution

1. Step 1: Write the proportion equation
   318,217.50 : 466,632 = 466,632 : x
2. Step 2: Convert to fraction form
   318,217.50/466,632 = 466,632/x
3. Step 3: Cross multiply
   318,217.50x = 466,632 × 466,632
4. Step 4: Simplify right side
   318,217.50x = 217,745,423,424
5. Step 5: Solve for x
   x = 217,745,423,424/318,217.50
6. Step 6: Final answer
   x = 684,266.02