Finding the Third Proportional to 387,105 and 835,446

Step by Step Solution

1. Step 1: Write the proportion equation
   387,105 : 835,446 = 835,446 : x
2. Step 2: Convert to fraction form
   387,105/835,446 = 835,446/x
3. Step 3: Cross multiply
   387,105x = 835,446 × 835,446
4. Step 4: Simplify right side
   387,105x = 697,970,018,916
5. Step 5: Solve for x
   x = 697,970,018,916/387,105
6. Step 6: Final answer
   x = 1,803,050.90