Finding the Third Proportional to 8,266 and 13,020

Step by Step Solution

1. Step 1: Write the proportion equation
   8,266 : 13,020 = 13,020 : x
2. Step 2: Convert to fraction form
   8,266/13,020 = 13,020/x
3. Step 3: Cross multiply
   8,266x = 13,020 × 13,020
4. Step 4: Simplify right side
   8,266x = 169,520,400
5. Step 5: Solve for x
   x = 169,520,400/8,266
6. Step 6: Final answer
   x = 20,508.15