Finding the Third Proportional to 333.56 and 484.78

Step by Step Solution

1. Step 1: Write the proportion equation
   333.56 : 484.78 = 484.78 : x
2. Step 2: Convert to fraction form
   333.56/484.78 = 484.78/x
3. Step 3: Cross multiply
   333.56x = 484.78 × 484.78
4. Step 4: Simplify right side
   333.56x = 235,012.86
5. Step 5: Solve for x
   x = 235,012.86/333.56
6. Step 6: Final answer
   x = 704.55