Finding the Third Proportional to 57,055.50 and 85,758.75

Step by Step Solution

1. Step 1: Write the proportion equation
   57,055.50 : 85,758.75 = 85,758.75 : x
2. Step 2: Convert to fraction form
   57,055.50/85,758.75 = 85,758.75/x
3. Step 3: Cross multiply
   57,055.50x = 85,758.75 × 85,758.75
4. Step 4: Simplify right side
   57,055.50x = 7,354,563,201.56
5. Step 5: Solve for x
   x = 7,354,563,201.56/57,055.50
6. Step 6: Final answer
   x = 128,901.91