Finding the Third Proportional to 9,042 and 12,000

Step by Step Solution

1. Step 1: Write the proportion equation
   9,042 : 12,000 = 12,000 : x
2. Step 2: Convert to fraction form
   9,042/12,000 = 12,000/x
3. Step 3: Cross multiply
   9,042x = 12,000 × 12,000
4. Step 4: Simplify right side
   9,042x = 144,000,000
5. Step 5: Solve for x
   x = 144,000,000/9,042
6. Step 6: Final answer
   x = 15,925.68