Finding the Third Proportional to 111,552.38 and 217,500

Step by Step Solution

1. Step 1: Write the proportion equation
   111,552.38 : 217,500 = 217,500 : x
2. Step 2: Convert to fraction form
   111,552.38/217,500 = 217,500/x
3. Step 3: Cross multiply
   111,552.38x = 217,500 × 217,500
4. Step 4: Simplify right side
   111,552.38x = 47,306,250,000
5. Step 5: Solve for x
   x = 47,306,250,000/111,552.38
6. Step 6: Final answer
   x = 424,072.10