Finding the Third Proportional to 10,640 and 12,832

Step by Step Solution

1. Step 1: Write the proportion equation
   10,640 : 12,832 = 12,832 : x
2. Step 2: Convert to fraction form
   10,640/12,832 = 12,832/x
3. Step 3: Cross multiply
   10,640x = 12,832 × 12,832
4. Step 4: Simplify right side
   10,640x = 164,660,224
5. Step 5: Solve for x
   x = 164,660,224/10,640
6. Step 6: Final answer
   x = 15,475.58