Finding the Third Proportional to 61,641 and 89,055

Step by Step Solution

1. Step 1: Write the proportion equation
   61,641 : 89,055 = 89,055 : x
2. Step 2: Convert to fraction form
   61,641/89,055 = 89,055/x
3. Step 3: Cross multiply
   61,641x = 89,055 × 89,055
4. Step 4: Simplify right side
   61,641x = 7,930,793,025
5. Step 5: Solve for x
   x = 7,930,793,025/61,641
6. Step 6: Final answer
   x = 128,661.01