Finding the Third Proportional to 10,840 and 13,764

Step by Step Solution

1. Step 1: Write the proportion equation
   10,840 : 13,764 = 13,764 : x
2. Step 2: Convert to fraction form
   10,840/13,764 = 13,764/x
3. Step 3: Cross multiply
   10,840x = 13,764 × 13,764
4. Step 4: Simplify right side
   10,840x = 189,447,696
5. Step 5: Solve for x
   x = 189,447,696/10,840
6. Step 6: Final answer
   x = 17,476.72