Finding the Third Proportional to 60,612 and 132,240

Step by Step Solution

1. Step 1: Write the proportion equation
   60,612 : 132,240 = 132,240 : x
2. Step 2: Convert to fraction form
   60,612/132,240 = 132,240/x
3. Step 3: Cross multiply
   60,612x = 132,240 × 132,240
4. Step 4: Simplify right side
   60,612x = 17,487,417,600
5. Step 5: Solve for x
   x = 17,487,417,600/60,612
6. Step 6: Final answer
   x = 288,514.12