Finding the Third Proportional to 301,722 and 628,246.50

Step by Step Solution

1. Step 1: Write the proportion equation
   301,722 : 628,246.50 = 628,246.50 : x
2. Step 2: Convert to fraction form
   301,722/628,246.50 = 628,246.50/x
3. Step 3: Cross multiply
   301,722x = 628,246.50 × 628,246.50
4. Step 4: Simplify right side
   301,722x = 394,693,664,762.25
5. Step 5: Solve for x
   x = 394,693,664,762.25/301,722
6. Step 6: Final answer
   x = 1,308,136.84