Finding the Third Proportional to 8,672 and 12,072

Step by Step Solution

1. Step 1: Write the proportion equation
   8,672 : 12,072 = 12,072 : x
2. Step 2: Convert to fraction form
   8,672/12,072 = 12,072/x
3. Step 3: Cross multiply
   8,672x = 12,072 × 12,072
4. Step 4: Simplify right side
   8,672x = 145,733,184
5. Step 5: Solve for x
   x = 145,733,184/8,672
6. Step 6: Final answer
   x = 16,805.03