Finding the Third Proportional to 301,716 and 628,459.50

Step by Step Solution

1. Step 1: Write the proportion equation
   301,716 : 628,459.50 = 628,459.50 : x
2. Step 2: Convert to fraction form
   301,716/628,459.50 = 628,459.50/x
3. Step 3: Cross multiply
   301,716x = 628,459.50 × 628,459.50
4. Step 4: Simplify right side
   301,716x = 394,961,343,140.25
5. Step 5: Solve for x
   x = 394,961,343,140.25/301,716
6. Step 6: Final answer
   x = 1,309,050.04