Finding the Third Proportional to 338,238 and 728,802

Step by Step Solution

1. Step 1: Write the proportion equation
   338,238 : 728,802 = 728,802 : x
2. Step 2: Convert to fraction form
   338,238/728,802 = 728,802/x
3. Step 3: Cross multiply
   338,238x = 728,802 × 728,802
4. Step 4: Simplify right side
   338,238x = 531,152,355,204
5. Step 5: Solve for x
   x = 531,152,355,204/338,238
6. Step 6: Final answer
   x = 1,570,350.92