Finding the Third Proportional to 60,638 and 132,289

Step by Step Solution

1. Step 1: Write the proportion equation
   60,638 : 132,289 = 132,289 : x
2. Step 2: Convert to fraction form
   60,638/132,289 = 132,289/x
3. Step 3: Cross multiply
   60,638x = 132,289 × 132,289
4. Step 4: Simplify right side
   60,638x = 17,500,379,521
5. Step 5: Solve for x
   x = 17,500,379,521/60,638
6. Step 6: Final answer
   x = 288,604.17