Finding the Third Proportional to 60,540 and 131,979

Step by Step Solution

1. Step 1: Write the proportion equation
   60,540 : 131,979 = 131,979 : x
2. Step 2: Convert to fraction form
   60,540/131,979 = 131,979/x
3. Step 3: Cross multiply
   60,540x = 131,979 × 131,979
4. Step 4: Simplify right side
   60,540x = 17,418,456,441
5. Step 5: Solve for x
   x = 17,418,456,441/60,540
6. Step 6: Final answer
   x = 287,718.14