Finding the Third Proportional to 855,948 and 1,850,136

Step by Step Solution

1. Step 1: Write the proportion equation
   855,948 : 1,850,136 = 1,850,136 : x
2. Step 2: Convert to fraction form
   855,948/1,850,136 = 1,850,136/x
3. Step 3: Cross multiply
   855,948x = 1,850,136 × 1,850,136
4. Step 4: Simplify right side
   855,948x = 3,423,003,218,496
5. Step 5: Solve for x
   x = 3,423,003,218,496/855,948
6. Step 6: Final answer
   x = 3,999,078.47