Finding the Third Proportional to 331,639.50 and 710,595

Step by Step Solution

1. Step 1: Write the proportion equation
   331,639.50 : 710,595 = 710,595 : x
2. Step 2: Convert to fraction form
   331,639.50/710,595 = 710,595/x
3. Step 3: Cross multiply
   331,639.50x = 710,595 × 710,595
4. Step 4: Simplify right side
   331,639.50x = 504,945,254,025
5. Step 5: Solve for x
   x = 504,945,254,025/331,639.50
6. Step 6: Final answer
   x = 1,522,572.72