Finding the Third Proportional to 59,589 and 87,435.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,589 : 87,435.50 = 87,435.50 : x
2. Step 2: Convert to fraction form
   59,589/87,435.50 = 87,435.50/x
3. Step 3: Cross multiply
   59,589x = 87,435.50 × 87,435.50
4. Step 4: Simplify right side
   59,589x = 7,644,966,660.25
5. Step 5: Solve for x
   x = 7,644,966,660.25/59,589
6. Step 6: Final answer
   x = 128,294.93