Finding the Third Proportional to 301,732 and 628,256

Step by Step Solution

1. Step 1: Write the proportion equation
   301,732 : 628,256 = 628,256 : x
2. Step 2: Convert to fraction form
   301,732/628,256 = 628,256/x
3. Step 3: Cross multiply
   301,732x = 628,256 × 628,256
4. Step 4: Simplify right side
   301,732x = 394,705,601,536
5. Step 5: Solve for x
   x = 394,705,601,536/301,732
6. Step 6: Final answer
   x = 1,308,133.05