Finding the Third Proportional to 3,117.25 and 5,040.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,117.25 : 5,040.50 = 5,040.50 : x
2. Step 2: Convert to fraction form
   3,117.25/5,040.50 = 5,040.50/x
3. Step 3: Cross multiply
   3,117.25x = 5,040.50 × 5,040.50
4. Step 4: Simplify right side
   3,117.25x = 25,406,640.25
5. Step 5: Solve for x
   x = 25,406,640.25/3,117.25
6. Step 6: Final answer
   x = 8,150.34