Finding the Third Proportional to 3,393.56 and 4,472.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,393.56 : 4,472.72 = 4,472.72 : x
2. Step 2: Convert to fraction form
   3,393.56/4,472.72 = 4,472.72/x
3. Step 3: Cross multiply
   3,393.56x = 4,472.72 × 4,472.72
4. Step 4: Simplify right side
   3,393.56x = 20,005,213.02
5. Step 5: Solve for x
   x = 20,005,213.02/3,393.56
6. Step 6: Final answer
   x = 5,895.05