Finding the Third Proportional to 60,428 and 131,610

Step by Step Solution

1. Step 1: Write the proportion equation
   60,428 : 131,610 = 131,610 : x
2. Step 2: Convert to fraction form
   60,428/131,610 = 131,610/x
3. Step 3: Cross multiply
   60,428x = 131,610 × 131,610
4. Step 4: Simplify right side
   60,428x = 17,321,192,100
5. Step 5: Solve for x
   x = 17,321,192,100/60,428
6. Step 6: Final answer
   x = 286,641.82