Finding the Third Proportional to 12,664 and 18,892

Step by Step Solution

1. Step 1: Write the proportion equation
   12,664 : 18,892 = 18,892 : x
2. Step 2: Convert to fraction form
   12,664/18,892 = 18,892/x
3. Step 3: Cross multiply
   12,664x = 18,892 × 18,892
4. Step 4: Simplify right side
   12,664x = 356,907,664
5. Step 5: Solve for x
   x = 356,907,664/12,664
6. Step 6: Final answer
   x = 28,182.85