Finding the Third Proportional to 227,918 and 498,780

Step by Step Solution

1. Step 1: Write the proportion equation
   227,918 : 498,780 = 498,780 : x
2. Step 2: Convert to fraction form
   227,918/498,780 = 498,780/x
3. Step 3: Cross multiply
   227,918x = 498,780 × 498,780
4. Step 4: Simplify right side
   227,918x = 248,781,488,400
5. Step 5: Solve for x
   x = 248,781,488,400/227,918
6. Step 6: Final answer
   x = 1,091,539.45