Finding the Third Proportional to 12,018 and 18,392

Step by Step Solution

1. Step 1: Write the proportion equation
   12,018 : 18,392 = 18,392 : x
2. Step 2: Convert to fraction form
   12,018/18,392 = 18,392/x
3. Step 3: Cross multiply
   12,018x = 18,392 × 18,392
4. Step 4: Simplify right side
   12,018x = 338,265,664
5. Step 5: Solve for x
   x = 338,265,664/12,018
6. Step 6: Final answer
   x = 28,146.59