Finding the Third Proportional to 338,469 and 743,356.50

Step by Step Solution

1. Step 1: Write the proportion equation
   338,469 : 743,356.50 = 743,356.50 : x
2. Step 2: Convert to fraction form
   338,469/743,356.50 = 743,356.50/x
3. Step 3: Cross multiply
   338,469x = 743,356.50 × 743,356.50
4. Step 4: Simplify right side
   338,469x = 552,578,886,092.25
5. Step 5: Solve for x
   x = 552,578,886,092.25/338,469
6. Step 6: Final answer
   x = 1,632,583.45