Finding the Third Proportional to 57,850.50 and 86,775.75

Step by Step Solution

1. Step 1: Write the proportion equation
   57,850.50 : 86,775.75 = 86,775.75 : x
2. Step 2: Convert to fraction form
   57,850.50/86,775.75 = 86,775.75/x
3. Step 3: Cross multiply
   57,850.50x = 86,775.75 × 86,775.75
4. Step 4: Simplify right side
   57,850.50x = 7,530,030,788.06
5. Step 5: Solve for x
   x = 7,530,030,788.06/57,850.50
6. Step 6: Final answer
   x = 130,163.63