Finding the Third Proportional to 6,640 and 14,144

Step by Step Solution

1. Step 1: Write the proportion equation
   6,640 : 14,144 = 14,144 : x
2. Step 2: Convert to fraction form
   6,640/14,144 = 14,144/x
3. Step 3: Cross multiply
   6,640x = 14,144 × 14,144
4. Step 4: Simplify right side
   6,640x = 200,052,736
5. Step 5: Solve for x
   x = 200,052,736/6,640
6. Step 6: Final answer
   x = 30,128.42