Finding the Third Proportional to 404,302.50 and 673,771.50

Step by Step Solution

1. Step 1: Write the proportion equation
   404,302.50 : 673,771.50 = 673,771.50 : x
2. Step 2: Convert to fraction form
   404,302.50/673,771.50 = 673,771.50/x
3. Step 3: Cross multiply
   404,302.50x = 673,771.50 × 673,771.50
4. Step 4: Simplify right side
   404,302.50x = 453,968,034,212.25
5. Step 5: Solve for x
   x = 453,968,034,212.25/404,302.50
6. Step 6: Final answer
   x = 1,122,842.51