Finding the Third Proportional to 3,215.25 and 7,022.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,215.25 : 7,022.25 = 7,022.25 : x
2. Step 2: Convert to fraction form
   3,215.25/7,022.25 = 7,022.25/x
3. Step 3: Cross multiply
   3,215.25x = 7,022.25 × 7,022.25
4. Step 4: Simplify right side
   3,215.25x = 49,311,995.06
5. Step 5: Solve for x
   x = 49,311,995.06/3,215.25
6. Step 6: Final answer
   x = 15,336.91