Finding the Third Proportional to 439,749 and 673,843.50

Step by Step Solution

1. Step 1: Write the proportion equation
   439,749 : 673,843.50 = 673,843.50 : x
2. Step 2: Convert to fraction form
   439,749/673,843.50 = 673,843.50/x
3. Step 3: Cross multiply
   439,749x = 673,843.50 × 673,843.50
4. Step 4: Simplify right side
   439,749x = 454,065,062,492.25
5. Step 5: Solve for x
   x = 454,065,062,492.25/439,749
6. Step 6: Final answer
   x = 1,032,555.08