Finding the Third Proportional to 2,245.22 and 3,228.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,245.22 : 3,228.61 = 3,228.61 : x
2. Step 2: Convert to fraction form
   2,245.22/3,228.61 = 3,228.61/x
3. Step 3: Cross multiply
   2,245.22x = 3,228.61 × 3,228.61
4. Step 4: Simplify right side
   2,245.22x = 10,423,918.50
5. Step 5: Solve for x
   x = 10,423,918.50/2,245.22
6. Step 6: Final answer
   x = 4,642.72