Finding the Third Proportional to 12,672 and 19,727

Step by Step Solution

1. Step 1: Write the proportion equation
   12,672 : 19,727 = 19,727 : x
2. Step 2: Convert to fraction form
   12,672/19,727 = 19,727/x
3. Step 3: Cross multiply
   12,672x = 19,727 × 19,727
4. Step 4: Simplify right side
   12,672x = 389,154,529
5. Step 5: Solve for x
   x = 389,154,529/12,672
6. Step 6: Final answer
   x = 30,709.80