Finding the Third Proportional to 239,575.50 and 359,370

Step by Step Solution

1. Step 1: Write the proportion equation
   239,575.50 : 359,370 = 359,370 : x
2. Step 2: Convert to fraction form
   239,575.50/359,370 = 359,370/x
3. Step 3: Cross multiply
   239,575.50x = 359,370 × 359,370
4. Step 4: Simplify right side
   239,575.50x = 129,146,796,900
5. Step 5: Solve for x
   x = 129,146,796,900/239,575.50
6. Step 6: Final answer
   x = 539,065.13