Finding the Third Proportional to 225,656 and 490,156

Step by Step Solution

1. Step 1: Write the proportion equation
   225,656 : 490,156 = 490,156 : x
2. Step 2: Convert to fraction form
   225,656/490,156 = 490,156/x
3. Step 3: Cross multiply
   225,656x = 490,156 × 490,156
4. Step 4: Simplify right side
   225,656x = 240,252,904,336
5. Step 5: Solve for x
   x = 240,252,904,336/225,656
6. Step 6: Final answer
   x = 1,064,686.53