Finding the Third Proportional to 6,656 and 10,440.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,656 : 10,440.50 = 10,440.50 : x
2. Step 2: Convert to fraction form
   6,656/10,440.50 = 10,440.50/x
3. Step 3: Cross multiply
   6,656x = 10,440.50 × 10,440.50
4. Step 4: Simplify right side
   6,656x = 109,004,040.25
5. Step 5: Solve for x
   x = 109,004,040.25/6,656
6. Step 6: Final answer
   x = 16,376.81