Finding the Third Proportional to 2,574.28 and 5,725.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,574.28 : 5,725.69 = 5,725.69 : x
2. Step 2: Convert to fraction form
   2,574.28/5,725.69 = 5,725.69/x
3. Step 3: Cross multiply
   2,574.28x = 5,725.69 × 5,725.69
4. Step 4: Simplify right side
   2,574.28x = 32,783,497.35
5. Step 5: Solve for x
   x = 32,783,497.35/2,574.28
6. Step 6: Final answer
   x = 12,735.01