Finding the Third Proportional to 227,870 and 490,800

Step by Step Solution

1. Step 1: Write the proportion equation
   227,870 : 490,800 = 490,800 : x
2. Step 2: Convert to fraction form
   227,870/490,800 = 490,800/x
3. Step 3: Cross multiply
   227,870x = 490,800 × 490,800
4. Step 4: Simplify right side
   227,870x = 240,884,640,000
5. Step 5: Solve for x
   x = 240,884,640,000/227,870
6. Step 6: Final answer
   x = 1,057,114.32