Finding the Third Proportional to 225,772 and 490,410

Step by Step Solution

1. Step 1: Write the proportion equation
   225,772 : 490,410 = 490,410 : x
2. Step 2: Convert to fraction form
   225,772/490,410 = 490,410/x
3. Step 3: Cross multiply
   225,772x = 490,410 × 490,410
4. Step 4: Simplify right side
   225,772x = 240,501,968,100
5. Step 5: Solve for x
   x = 240,501,968,100/225,772
6. Step 6: Final answer
   x = 1,065,242.67