Finding the Third Proportional to 220,117.50 and 482,429.25

Step by Step Solution

1. Step 1: Write the proportion equation
   220,117.50 : 482,429.25 = 482,429.25 : x
2. Step 2: Convert to fraction form
   220,117.50/482,429.25 = 482,429.25/x
3. Step 3: Cross multiply
   220,117.50x = 482,429.25 × 482,429.25
4. Step 4: Simplify right side
   220,117.50x = 232,737,981,255.56
5. Step 5: Solve for x
   x = 232,737,981,255.56/220,117.50
6. Step 6: Final answer
   x = 1,057,335.20