Finding the Third Proportional to 12,086 and 18,488

Step by Step Solution

1. Step 1: Write the proportion equation
   12,086 : 18,488 = 18,488 : x
2. Step 2: Convert to fraction form
   12,086/18,488 = 18,488/x
3. Step 3: Cross multiply
   12,086x = 18,488 × 18,488
4. Step 4: Simplify right side
   12,086x = 341,806,144
5. Step 5: Solve for x
   x = 341,806,144/12,086
6. Step 6: Final answer
   x = 28,281.16