Finding the Third Proportional to 404.50 and 546

Step by Step Solution

1. Step 1: Write the proportion equation
   404.50 : 546 = 546 : x
2. Step 2: Convert to fraction form
   404.50/546 = 546/x
3. Step 3: Cross multiply
   404.50x = 546 × 546
4. Step 4: Simplify right side
   404.50x = 298,116
5. Step 5: Solve for x
   x = 298,116/404.50
6. Step 6: Final answer
   x = 737.00