Finding the Third Proportional to 3,328.31 and 7,247.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,328.31 : 7,247.25 = 7,247.25 : x
2. Step 2: Convert to fraction form
   3,328.31/7,247.25 = 7,247.25/x
3. Step 3: Cross multiply
   3,328.31x = 7,247.25 × 7,247.25
4. Step 4: Simplify right side
   3,328.31x = 52,522,632.56
5. Step 5: Solve for x
   x = 52,522,632.56/3,328.31
6. Step 6: Final answer
   x = 15,780.56