Finding the Third Proportional to 12,871 and 18,030

Step by Step Solution

1. Step 1: Write the proportion equation
   12,871 : 18,030 = 18,030 : x
2. Step 2: Convert to fraction form
   12,871/18,030 = 18,030/x
3. Step 3: Cross multiply
   12,871x = 18,030 × 18,030
4. Step 4: Simplify right side
   12,871x = 325,080,900
5. Step 5: Solve for x
   x = 325,080,900/12,871
6. Step 6: Final answer
   x = 25,256.85