Finding the Third Proportional to 225,650 and 490,144

Step by Step Solution

1. Step 1: Write the proportion equation
   225,650 : 490,144 = 490,144 : x
2. Step 2: Convert to fraction form
   225,650/490,144 = 490,144/x
3. Step 3: Cross multiply
   225,650x = 490,144 × 490,144
4. Step 4: Simplify right side
   225,650x = 240,241,140,736
5. Step 5: Solve for x
   x = 240,241,140,736/225,650
6. Step 6: Final answer
   x = 1,064,662.71