Finding the Third Proportional to 648.56 and 1,036.41

Step by Step Solution

1. Step 1: Write the proportion equation
   648.56 : 1,036.41 = 1,036.41 : x
2. Step 2: Convert to fraction form
   648.56/1,036.41 = 1,036.41/x
3. Step 3: Cross multiply
   648.56x = 1,036.41 × 1,036.41
4. Step 4: Simplify right side
   648.56x = 1,074,137.92
5. Step 5: Solve for x
   x = 1,074,137.92/648.56
6. Step 6: Final answer
   x = 1,656.18