Finding the Third Proportional to 3,936.75 and 8,350.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,936.75 : 8,350.50 = 8,350.50 : x
2. Step 2: Convert to fraction form
   3,936.75/8,350.50 = 8,350.50/x
3. Step 3: Cross multiply
   3,936.75x = 8,350.50 × 8,350.50
4. Step 4: Simplify right side
   3,936.75x = 69,730,850.25
5. Step 5: Solve for x
   x = 69,730,850.25/3,936.75
6. Step 6: Final answer
   x = 17,712.80