Finding the Third Proportional to 111,225.50 and 239,948

Step by Step Solution

1. Step 1: Write the proportion equation
   111,225.50 : 239,948 = 239,948 : x
2. Step 2: Convert to fraction form
   111,225.50/239,948 = 239,948/x
3. Step 3: Cross multiply
   111,225.50x = 239,948 × 239,948
4. Step 4: Simplify right side
   111,225.50x = 57,575,042,704
5. Step 5: Solve for x
   x = 57,575,042,704/111,225.50
6. Step 6: Final answer
   x = 517,642.47