Finding the Third Proportional to 8,621 and 13,182

Step by Step Solution

1. Step 1: Write the proportion equation
   8,621 : 13,182 = 13,182 : x
2. Step 2: Convert to fraction form
   8,621/13,182 = 13,182/x
3. Step 3: Cross multiply
   8,621x = 13,182 × 13,182
4. Step 4: Simplify right side
   8,621x = 173,765,124
5. Step 5: Solve for x
   x = 173,765,124/8,621
6. Step 6: Final answer
   x = 20,156.03