Finding the Third Proportional to 9,042 and 12,312

Step by Step Solution

1. Step 1: Write the proportion equation
   9,042 : 12,312 = 12,312 : x
2. Step 2: Convert to fraction form
   9,042/12,312 = 12,312/x
3. Step 3: Cross multiply
   9,042x = 12,312 × 12,312
4. Step 4: Simplify right side
   9,042x = 151,585,344
5. Step 5: Solve for x
   x = 151,585,344/9,042
6. Step 6: Final answer
   x = 16,764.58