Finding the Third Proportional to 59,518 and 86,998

Step by Step Solution

1. Step 1: Write the proportion equation
   59,518 : 86,998 = 86,998 : x
2. Step 2: Convert to fraction form
   59,518/86,998 = 86,998/x
3. Step 3: Cross multiply
   59,518x = 86,998 × 86,998
4. Step 4: Simplify right side
   59,518x = 7,568,652,004
5. Step 5: Solve for x
   x = 7,568,652,004/59,518
6. Step 6: Final answer
   x = 127,165.77