Finding the Third Proportional to 109,327.50 and 239,580

Step by Step Solution

1. Step 1: Write the proportion equation
   109,327.50 : 239,580 = 239,580 : x
2. Step 2: Convert to fraction form
   109,327.50/239,580 = 239,580/x
3. Step 3: Cross multiply
   109,327.50x = 239,580 × 239,580
4. Step 4: Simplify right side
   109,327.50x = 57,398,576,400
5. Step 5: Solve for x
   x = 57,398,576,400/109,327.50
6. Step 6: Final answer
   x = 525,014.99