Finding the Third Proportional to 8,020 and 12,662

Step by Step Solution

1. Step 1: Write the proportion equation
   8,020 : 12,662 = 12,662 : x
2. Step 2: Convert to fraction form
   8,020/12,662 = 12,662/x
3. Step 3: Cross multiply
   8,020x = 12,662 × 12,662
4. Step 4: Simplify right side
   8,020x = 160,326,244
5. Step 5: Solve for x
   x = 160,326,244/8,020
6. Step 6: Final answer
   x = 19,990.80