Finding the Third Proportional to 3,815.54 and 8,248.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,815.54 : 8,248.55 = 8,248.55 : x
2. Step 2: Convert to fraction form
   3,815.54/8,248.55 = 8,248.55/x
3. Step 3: Cross multiply
   3,815.54x = 8,248.55 × 8,248.55
4. Step 4: Simplify right side
   3,815.54x = 68,038,622.21
5. Step 5: Solve for x
   x = 68,038,622.21/3,815.54
6. Step 6: Final answer
   x = 17,831.96