Finding the Third Proportional to 225,508 and 485,036

Step by Step Solution

1. Step 1: Write the proportion equation
   225,508 : 485,036 = 485,036 : x
2. Step 2: Convert to fraction form
   225,508/485,036 = 485,036/x
3. Step 3: Cross multiply
   225,508x = 485,036 × 485,036
4. Step 4: Simplify right side
   225,508x = 235,259,921,296
5. Step 5: Solve for x
   x = 235,259,921,296/225,508
6. Step 6: Final answer
   x = 1,043,244.24