Finding the Third Proportional to 12,672 and 16,104

Step by Step Solution

1. Step 1: Write the proportion equation
   12,672 : 16,104 = 16,104 : x
2. Step 2: Convert to fraction form
   12,672/16,104 = 16,104/x
3. Step 3: Cross multiply
   12,672x = 16,104 × 16,104
4. Step 4: Simplify right side
   12,672x = 259,338,816
5. Step 5: Solve for x
   x = 259,338,816/12,672
6. Step 6: Final answer
   x = 20,465.50