Finding the Third Proportional to 301,740 and 628,282.50

Step by Step Solution

1. Step 1: Write the proportion equation
   301,740 : 628,282.50 = 628,282.50 : x
2. Step 2: Convert to fraction form
   301,740/628,282.50 = 628,282.50/x
3. Step 3: Cross multiply
   301,740x = 628,282.50 × 628,282.50
4. Step 4: Simplify right side
   301,740x = 394,738,899,806.25
5. Step 5: Solve for x
   x = 394,738,899,806.25/301,740
6. Step 6: Final answer
   x = 1,308,208.72