Finding the Third Proportional to 3,993.47 and 8,314.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,993.47 : 8,314.31 = 8,314.31 : x
2. Step 2: Convert to fraction form
   3,993.47/8,314.31 = 8,314.31/x
3. Step 3: Cross multiply
   3,993.47x = 8,314.31 × 8,314.31
4. Step 4: Simplify right side
   3,993.47x = 69,127,792.35
5. Step 5: Solve for x
   x = 69,127,792.35/3,993.47
6. Step 6: Final answer
   x = 17,310.21