Finding the Third Proportional to 111,004.50 and 239,748

Step by Step Solution

1. Step 1: Write the proportion equation
   111,004.50 : 239,748 = 239,748 : x
2. Step 2: Convert to fraction form
   111,004.50/239,748 = 239,748/x
3. Step 3: Cross multiply
   111,004.50x = 239,748 × 239,748
4. Step 4: Simplify right side
   111,004.50x = 57,479,103,504
5. Step 5: Solve for x
   x = 57,479,103,504/111,004.50
6. Step 6: Final answer
   x = 517,808.77