Finding the Third Proportional to 8,408.81 and 13,023.28

Step by Step Solution

1. Step 1: Write the proportion equation
   8,408.81 : 13,023.28 = 13,023.28 : x
2. Step 2: Convert to fraction form
   8,408.81/13,023.28 = 13,023.28/x
3. Step 3: Cross multiply
   8,408.81x = 13,023.28 × 13,023.28
4. Step 4: Simplify right side
   8,408.81x = 169,605,854.52
5. Step 5: Solve for x
   x = 169,605,854.52/8,408.81
6. Step 6: Final answer
   x = 20,170.01