Finding the Third Proportional to 57,123.75 and 88,939.25

Step by Step Solution

1. Step 1: Write the proportion equation
   57,123.75 : 88,939.25 = 88,939.25 : x
2. Step 2: Convert to fraction form
   57,123.75/88,939.25 = 88,939.25/x
3. Step 3: Cross multiply
   57,123.75x = 88,939.25 × 88,939.25
4. Step 4: Simplify right side
   57,123.75x = 7,910,190,190.56
5. Step 5: Solve for x
   x = 7,910,190,190.56/57,123.75
6. Step 6: Final answer
   x = 138,474.63