Finding the Third Proportional to 224,638 and 488,634

Step by Step Solution

1. Step 1: Write the proportion equation
   224,638 : 488,634 = 488,634 : x
2. Step 2: Convert to fraction form
   224,638/488,634 = 488,634/x
3. Step 3: Cross multiply
   224,638x = 488,634 × 488,634
4. Step 4: Simplify right side
   224,638x = 238,763,185,956
5. Step 5: Solve for x
   x = 238,763,185,956/224,638
6. Step 6: Final answer
   x = 1,062,879.77