Finding the Third Proportional to 223,618 and 488,708

Step by Step Solution

1. Step 1: Write the proportion equation
   223,618 : 488,708 = 488,708 : x
2. Step 2: Convert to fraction form
   223,618/488,708 = 488,708/x
3. Step 3: Cross multiply
   223,618x = 488,708 × 488,708
4. Step 4: Simplify right side
   223,618x = 238,835,509,264
5. Step 5: Solve for x
   x = 238,835,509,264/223,618
6. Step 6: Final answer
   x = 1,068,051.36