Finding the Third Proportional to 301,714.50 and 628,456.50

Step by Step Solution

1. Step 1: Write the proportion equation
   301,714.50 : 628,456.50 = 628,456.50 : x
2. Step 2: Convert to fraction form
   301,714.50/628,456.50 = 628,456.50/x
3. Step 3: Cross multiply
   301,714.50x = 628,456.50 × 628,456.50
4. Step 4: Simplify right side
   301,714.50x = 394,957,572,392.25
5. Step 5: Solve for x
   x = 394,957,572,392.25/301,714.50
6. Step 6: Final answer
   x = 1,309,044.05