Finding the Third Proportional to 59,713.88 and 90,342

Step by Step Solution

1. Step 1: Write the proportion equation
   59,713.88 : 90,342 = 90,342 : x
2. Step 2: Convert to fraction form
   59,713.88/90,342 = 90,342/x
3. Step 3: Cross multiply
   59,713.88x = 90,342 × 90,342
4. Step 4: Simplify right side
   59,713.88x = 8,161,676,964
5. Step 5: Solve for x
   x = 8,161,676,964/59,713.88
6. Step 6: Final answer
   x = 136,679.74