Finding the Third Proportional to 12,867 and 20,610

Step by Step Solution

1. Step 1: Write the proportion equation
   12,867 : 20,610 = 20,610 : x
2. Step 2: Convert to fraction form
   12,867/20,610 = 20,610/x
3. Step 3: Cross multiply
   12,867x = 20,610 × 20,610
4. Step 4: Simplify right side
   12,867x = 424,772,100
5. Step 5: Solve for x
   x = 424,772,100/12,867
6. Step 6: Final answer
   x = 33,012.52