Finding the Third Proportional to 355,902 and 783,105

Step by Step Solution

1. Step 1: Write the proportion equation
   355,902 : 783,105 = 783,105 : x
2. Step 2: Convert to fraction form
   355,902/783,105 = 783,105/x
3. Step 3: Cross multiply
   355,902x = 783,105 × 783,105
4. Step 4: Simplify right side
   355,902x = 613,253,441,025
5. Step 5: Solve for x
   x = 613,253,441,025/355,902
6. Step 6: Final answer
   x = 1,723,096.36