Finding the Third Proportional to 12,808 and 13,912

Step by Step Solution

1. Step 1: Write the proportion equation
   12,808 : 13,912 = 13,912 : x
2. Step 2: Convert to fraction form
   12,808/13,912 = 13,912/x
3. Step 3: Cross multiply
   12,808x = 13,912 × 13,912
4. Step 4: Simplify right side
   12,808x = 193,543,744
5. Step 5: Solve for x
   x = 193,543,744/12,808
6. Step 6: Final answer
   x = 15,111.16