Finding the Third Proportional to 61,089 and 89,448

Step by Step Solution

1. Step 1: Write the proportion equation
   61,089 : 89,448 = 89,448 : x
2. Step 2: Convert to fraction form
   61,089/89,448 = 89,448/x
3. Step 3: Cross multiply
   61,089x = 89,448 × 89,448
4. Step 4: Simplify right side
   61,089x = 8,000,944,704
5. Step 5: Solve for x
   x = 8,000,944,704/61,089
6. Step 6: Final answer
   x = 130,971.94