Finding the Third Proportional to 59,898 and 87,684

Step by Step Solution

1. Step 1: Write the proportion equation
   59,898 : 87,684 = 87,684 : x
2. Step 2: Convert to fraction form
   59,898/87,684 = 87,684/x
3. Step 3: Cross multiply
   59,898x = 87,684 × 87,684
4. Step 4: Simplify right side
   59,898x = 7,688,483,856
5. Step 5: Solve for x
   x = 7,688,483,856/59,898
6. Step 6: Final answer
   x = 128,359.61