Finding the Third Proportional to 219,304 and 480,490

Step by Step Solution

1. Step 1: Write the proportion equation
   219,304 : 480,490 = 480,490 : x
2. Step 2: Convert to fraction form
   219,304/480,490 = 480,490/x
3. Step 3: Cross multiply
   219,304x = 480,490 × 480,490
4. Step 4: Simplify right side
   219,304x = 230,870,640,100
5. Step 5: Solve for x
   x = 230,870,640,100/219,304
6. Step 6: Final answer
   x = 1,052,742.49