Finding the Third Proportional to 226,660 and 488,456

Step by Step Solution

1. Step 1: Write the proportion equation
   226,660 : 488,456 = 488,456 : x
2. Step 2: Convert to fraction form
   226,660/488,456 = 488,456/x
3. Step 3: Cross multiply
   226,660x = 488,456 × 488,456
4. Step 4: Simplify right side
   226,660x = 238,589,263,936
5. Step 5: Solve for x
   x = 238,589,263,936/226,660
6. Step 6: Final answer
   x = 1,052,630.65