Finding the Third Proportional to 59,914.50 and 91,689.75

Step by Step Solution

1. Step 1: Write the proportion equation
   59,914.50 : 91,689.75 = 91,689.75 : x
2. Step 2: Convert to fraction form
   59,914.50/91,689.75 = 91,689.75/x
3. Step 3: Cross multiply
   59,914.50x = 91,689.75 × 91,689.75
4. Step 4: Simplify right side
   59,914.50x = 8,407,010,255.06
5. Step 5: Solve for x
   x = 8,407,010,255.06/59,914.50
6. Step 6: Final answer
   x = 140,316.79