Finding the Third Proportional to 12,716 and 17,906

Step by Step Solution

1. Step 1: Write the proportion equation
   12,716 : 17,906 = 17,906 : x
2. Step 2: Convert to fraction form
   12,716/17,906 = 17,906/x
3. Step 3: Cross multiply
   12,716x = 17,906 × 17,906
4. Step 4: Simplify right side
   12,716x = 320,624,836
5. Step 5: Solve for x
   x = 320,624,836/12,716
6. Step 6: Final answer
   x = 25,214.28