Finding the Third Proportional to 336.61 and 493.83

Step by Step Solution

1. Step 1: Write the proportion equation
   336.61 : 493.83 = 493.83 : x
2. Step 2: Convert to fraction form
   336.61/493.83 = 493.83/x
3. Step 3: Cross multiply
   336.61x = 493.83 × 493.83
4. Step 4: Simplify right side
   336.61x = 243,866.22
5. Step 5: Solve for x
   x = 243,866.22/336.61
6. Step 6: Final answer
   x = 724.48