Finding the Third Proportional to 59,200 and 87,900

Step by Step Solution

1. Step 1: Write the proportion equation
   59,200 : 87,900 = 87,900 : x
2. Step 2: Convert to fraction form
   59,200/87,900 = 87,900/x
3. Step 3: Cross multiply
   59,200x = 87,900 × 87,900
4. Step 4: Simplify right side
   59,200x = 7,726,410,000
5. Step 5: Solve for x
   x = 7,726,410,000/59,200
6. Step 6: Final answer
   x = 130,513.68