Finding the Third Proportional to 4,019.47 and 8,231.15

Step by Step Solution

1. Step 1: Write the proportion equation
   4,019.47 : 8,231.15 = 8,231.15 : x
2. Step 2: Convert to fraction form
   4,019.47/8,231.15 = 8,231.15/x
3. Step 3: Cross multiply
   4,019.47x = 8,231.15 × 8,231.15
4. Step 4: Simplify right side
   4,019.47x = 67,751,836.75
5. Step 5: Solve for x
   x = 67,751,836.75/4,019.47
6. Step 6: Final answer
   x = 16,855.93