Finding the Third Proportional to 152,920.50 and 359,791.50

Step by Step Solution

1. Step 1: Write the proportion equation
   152,920.50 : 359,791.50 = 359,791.50 : x
2. Step 2: Convert to fraction form
   152,920.50/359,791.50 = 359,791.50/x
3. Step 3: Cross multiply
   152,920.50x = 359,791.50 × 359,791.50
4. Step 4: Simplify right side
   152,920.50x = 129,449,923,472.25
5. Step 5: Solve for x
   x = 129,449,923,472.25/152,920.50
6. Step 6: Final answer
   x = 846,517.79