Finding the Third Proportional to 12,024 and 13,140

Step by Step Solution

1. Step 1: Write the proportion equation
   12,024 : 13,140 = 13,140 : x
2. Step 2: Convert to fraction form
   12,024/13,140 = 13,140/x
3. Step 3: Cross multiply
   12,024x = 13,140 × 13,140
4. Step 4: Simplify right side
   12,024x = 172,659,600
5. Step 5: Solve for x
   x = 172,659,600/12,024
6. Step 6: Final answer
   x = 14,359.58