Finding the Third Proportional to 12,736 and 16,912

Step by Step Solution

1. Step 1: Write the proportion equation
   12,736 : 16,912 = 16,912 : x
2. Step 2: Convert to fraction form
   12,736/16,912 = 16,912/x
3. Step 3: Cross multiply
   12,736x = 16,912 × 16,912
4. Step 4: Simplify right side
   12,736x = 286,015,744
5. Step 5: Solve for x
   x = 286,015,744/12,736
6. Step 6: Final answer
   x = 22,457.27