Finding the Third Proportional to 239,965.50 and 525,123

Step by Step Solution

1. Step 1: Write the proportion equation
   239,965.50 : 525,123 = 525,123 : x
2. Step 2: Convert to fraction form
   239,965.50/525,123 = 525,123/x
3. Step 3: Cross multiply
   239,965.50x = 525,123 × 525,123
4. Step 4: Simplify right side
   239,965.50x = 275,754,165,129
5. Step 5: Solve for x
   x = 275,754,165,129/239,965.50
6. Step 6: Final answer
   x = 1,149,140.88