Finding the Third Proportional to 224,360 and 490,840

Step by Step Solution

1. Step 1: Write the proportion equation
   224,360 : 490,840 = 490,840 : x
2. Step 2: Convert to fraction form
   224,360/490,840 = 490,840/x
3. Step 3: Cross multiply
   224,360x = 490,840 × 490,840
4. Step 4: Simplify right side
   224,360x = 240,923,905,600
5. Step 5: Solve for x
   x = 240,923,905,600/224,360
6. Step 6: Final answer
   x = 1,073,827.36