Finding the Third Proportional to 57,631.50 and 89,003.25

Step by Step Solution

1. Step 1: Write the proportion equation
   57,631.50 : 89,003.25 = 89,003.25 : x
2. Step 2: Convert to fraction form
   57,631.50/89,003.25 = 89,003.25/x
3. Step 3: Cross multiply
   57,631.50x = 89,003.25 × 89,003.25
4. Step 4: Simplify right side
   57,631.50x = 7,921,578,510.56
5. Step 5: Solve for x
   x = 7,921,578,510.56/57,631.50
6. Step 6: Final answer
   x = 137,452.24