Finding the Third Proportional to 3,017.50 and 5,456.75

Step by Step Solution

1. Step 1: Write the proportion equation
   3,017.50 : 5,456.75 = 5,456.75 : x
2. Step 2: Convert to fraction form
   3,017.50/5,456.75 = 5,456.75/x
3. Step 3: Cross multiply
   3,017.50x = 5,456.75 × 5,456.75
4. Step 4: Simplify right side
   3,017.50x = 29,776,120.56
5. Step 5: Solve for x
   x = 29,776,120.56/3,017.50
6. Step 6: Final answer
   x = 9,867.81