Finding the Third Proportional to 3,423.94 and 5,228.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,423.94 : 5,228.72 = 5,228.72 : x
2. Step 2: Convert to fraction form
   3,423.94/5,228.72 = 5,228.72/x
3. Step 3: Cross multiply
   3,423.94x = 5,228.72 × 5,228.72
4. Step 4: Simplify right side
   3,423.94x = 27,339,499.77
5. Step 5: Solve for x
   x = 27,339,499.77/3,423.94
6. Step 6: Final answer
   x = 7,984.81