Finding the Third Proportional to 339,556.50 and 738,081

Step by Step Solution

1. Step 1: Write the proportion equation
   339,556.50 : 738,081 = 738,081 : x
2. Step 2: Convert to fraction form
   339,556.50/738,081 = 738,081/x
3. Step 3: Cross multiply
   339,556.50x = 738,081 × 738,081
4. Step 4: Simplify right side
   339,556.50x = 544,763,562,561
5. Step 5: Solve for x
   x = 544,763,562,561/339,556.50
6. Step 6: Final answer
   x = 1,604,338.49