Finding the Third Proportional to 301,704 and 628,216.50

Step by Step Solution

1. Step 1: Write the proportion equation
   301,704 : 628,216.50 = 628,216.50 : x
2. Step 2: Convert to fraction form
   301,704/628,216.50 = 628,216.50/x
3. Step 3: Cross multiply
   301,704x = 628,216.50 × 628,216.50
4. Step 4: Simplify right side
   301,704x = 394,655,970,872.25
5. Step 5: Solve for x
   x = 394,655,970,872.25/301,704
6. Step 6: Final answer
   x = 1,308,089.95