Finding the Third Proportional to 64,411.88 and 89,002.97

Step by Step Solution

1. Step 1: Write the proportion equation
   64,411.88 : 89,002.97 = 89,002.97 : x
2. Step 2: Convert to fraction form
   64,411.88/89,002.97 = 89,002.97/x
3. Step 3: Cross multiply
   64,411.88x = 89,002.97 × 89,002.97
4. Step 4: Simplify right side
   64,411.88x = 7,921,528,446.31
5. Step 5: Solve for x
   x = 7,921,528,446.31/64,411.88
6. Step 6: Final answer
   x = 122,982.42