Finding the Third Proportional to 57,190.50 and 86,757.75

Step by Step Solution

1. Step 1: Write the proportion equation
   57,190.50 : 86,757.75 = 86,757.75 : x
2. Step 2: Convert to fraction form
   57,190.50/86,757.75 = 86,757.75/x
3. Step 3: Cross multiply
   57,190.50x = 86,757.75 × 86,757.75
4. Step 4: Simplify right side
   57,190.50x = 7,526,907,185.06
5. Step 5: Solve for x
   x = 7,526,907,185.06/57,190.50
6. Step 6: Final answer
   x = 131,611.14