Finding the Third Proportional to 59,479.75 and 86,986.13

Step by Step Solution

1. Step 1: Write the proportion equation
   59,479.75 : 86,986.13 = 86,986.13 : x
2. Step 2: Convert to fraction form
   59,479.75/86,986.13 = 86,986.13/x
3. Step 3: Cross multiply
   59,479.75x = 86,986.13 × 86,986.13
4. Step 4: Simplify right side
   59,479.75x = 7,566,585,942.52
5. Step 5: Solve for x
   x = 7,566,585,942.52/59,479.75
6. Step 6: Final answer
   x = 127,212.81