Finding the Third Proportional to 338,454 and 743,329.50

Step by Step Solution

1. Step 1: Write the proportion equation
   338,454 : 743,329.50 = 743,329.50 : x
2. Step 2: Convert to fraction form
   338,454/743,329.50 = 743,329.50/x
3. Step 3: Cross multiply
   338,454x = 743,329.50 × 743,329.50
4. Step 4: Simplify right side
   338,454x = 552,538,745,570.25
5. Step 5: Solve for x
   x = 552,538,745,570.25/338,454
6. Step 6: Final answer
   x = 1,632,537.20