Finding the Third Proportional to 60,488 and 88,620

Step by Step Solution

1. Step 1: Write the proportion equation
   60,488 : 88,620 = 88,620 : x
2. Step 2: Convert to fraction form
   60,488/88,620 = 88,620/x
3. Step 3: Cross multiply
   60,488x = 88,620 × 88,620
4. Step 4: Simplify right side
   60,488x = 7,853,504,400
5. Step 5: Solve for x
   x = 7,853,504,400/60,488
6. Step 6: Final answer
   x = 129,835.74