Finding the Third Proportional to 8,010 and 12,869

Step by Step Solution

1. Step 1: Write the proportion equation
   8,010 : 12,869 = 12,869 : x
2. Step 2: Convert to fraction form
   8,010/12,869 = 12,869/x
3. Step 3: Cross multiply
   8,010x = 12,869 × 12,869
4. Step 4: Simplify right side
   8,010x = 165,611,161
5. Step 5: Solve for x
   x = 165,611,161/8,010
6. Step 6: Final answer
   x = 20,675.55