Finding the Third Proportional to 6,640 and 10,616

Step by Step Solution

1. Step 1: Write the proportion equation
   6,640 : 10,616 = 10,616 : x
2. Step 2: Convert to fraction form
   6,640/10,616 = 10,616/x
3. Step 3: Cross multiply
   6,640x = 10,616 × 10,616
4. Step 4: Simplify right side
   6,640x = 112,699,456
5. Step 5: Solve for x
   x = 112,699,456/6,640
6. Step 6: Final answer
   x = 16,972.81