Finding the Third Proportional to 228,638 and 501,544

Step by Step Solution

1. Step 1: Write the proportion equation
   228,638 : 501,544 = 501,544 : x
2. Step 2: Convert to fraction form
   228,638/501,544 = 501,544/x
3. Step 3: Cross multiply
   228,638x = 501,544 × 501,544
4. Step 4: Simplify right side
   228,638x = 251,546,383,936
5. Step 5: Solve for x
   x = 251,546,383,936/228,638
6. Step 6: Final answer
   x = 1,100,195.00