Finding the Third Proportional to 11,072 and 12,080

Step by Step Solution

1. Step 1: Write the proportion equation
   11,072 : 12,080 = 12,080 : x
2. Step 2: Convert to fraction form
   11,072/12,080 = 12,080/x
3. Step 3: Cross multiply
   11,072x = 12,080 × 12,080
4. Step 4: Simplify right side
   11,072x = 145,926,400
5. Step 5: Solve for x
   x = 145,926,400/11,072
6. Step 6: Final answer
   x = 13,179.77