Finding the Third Proportional to 59,959.25 and 86,623.88

Step by Step Solution

1. Step 1: Write the proportion equation
   59,959.25 : 86,623.88 = 86,623.88 : x
2. Step 2: Convert to fraction form
   59,959.25/86,623.88 = 86,623.88/x
3. Step 3: Cross multiply
   59,959.25x = 86,623.88 × 86,623.88
4. Step 4: Simplify right side
   59,959.25x = 7,503,695,720.02
5. Step 5: Solve for x
   x = 7,503,695,720.02/59,959.25
6. Step 6: Final answer
   x = 125,146.59