Finding the Third Proportional to 8,064 and 12,143

Step by Step Solution

1. Step 1: Write the proportion equation
   8,064 : 12,143 = 12,143 : x
2. Step 2: Convert to fraction form
   8,064/12,143 = 12,143/x
3. Step 3: Cross multiply
   8,064x = 12,143 × 12,143
4. Step 4: Simplify right side
   8,064x = 147,452,449
5. Step 5: Solve for x
   x = 147,452,449/8,064
6. Step 6: Final answer
   x = 18,285.27