Finding the Third Proportional to 404,276 and 673,734

Step by Step Solution

1. Step 1: Write the proportion equation
   404,276 : 673,734 = 673,734 : x
2. Step 2: Convert to fraction form
   404,276/673,734 = 673,734/x
3. Step 3: Cross multiply
   404,276x = 673,734 × 673,734
4. Step 4: Simplify right side
   404,276x = 453,917,502,756
5. Step 5: Solve for x
   x = 453,917,502,756/404,276
6. Step 6: Final answer
   x = 1,122,791.12