Finding the Third Proportional to 4,028.91 and 8,308.41

Step by Step Solution

1. Step 1: Write the proportion equation
   4,028.91 : 8,308.41 = 8,308.41 : x
2. Step 2: Convert to fraction form
   4,028.91/8,308.41 = 8,308.41/x
3. Step 3: Cross multiply
   4,028.91x = 8,308.41 × 8,308.41
4. Step 4: Simplify right side
   4,028.91x = 69,029,614.42
5. Step 5: Solve for x
   x = 69,029,614.42/4,028.91
6. Step 6: Final answer
   x = 17,133.59