Finding the Third Proportional to 59,880 and 87,186

Step by Step Solution

1. Step 1: Write the proportion equation
   59,880 : 87,186 = 87,186 : x
2. Step 2: Convert to fraction form
   59,880/87,186 = 87,186/x
3. Step 3: Cross multiply
   59,880x = 87,186 × 87,186
4. Step 4: Simplify right side
   59,880x = 7,601,398,596
5. Step 5: Solve for x
   x = 7,601,398,596/59,880
6. Step 6: Final answer
   x = 126,943.86