Finding the Third Proportional to 111,132 and 239,760

Step by Step Solution

1. Step 1: Write the proportion equation
   111,132 : 239,760 = 239,760 : x
2. Step 2: Convert to fraction form
   111,132/239,760 = 239,760/x
3. Step 3: Cross multiply
   111,132x = 239,760 × 239,760
4. Step 4: Simplify right side
   111,132x = 57,484,857,600
5. Step 5: Solve for x
   x = 57,484,857,600/111,132
6. Step 6: Final answer
   x = 517,266.47