Finding the Third Proportional to 338,919 and 497,050.50

Step by Step Solution

1. Step 1: Write the proportion equation
   338,919 : 497,050.50 = 497,050.50 : x
2. Step 2: Convert to fraction form
   338,919/497,050.50 = 497,050.50/x
3. Step 3: Cross multiply
   338,919x = 497,050.50 × 497,050.50
4. Step 4: Simplify right side
   338,919x = 247,059,199,550.25
5. Step 5: Solve for x
   x = 247,059,199,550.25/338,919
6. Step 6: Final answer
   x = 728,962.38