Finding the Third Proportional to 1,855,831 and 3,881,345

Step by Step Solution

1. Step 1: Write the proportion equation
   1,855,831 : 3,881,345 = 3,881,345 : x
2. Step 2: Convert to fraction form
   1,855,831/3,881,345 = 3,881,345/x
3. Step 3: Cross multiply
   1,855,831x = 3,881,345 × 3,881,345
4. Step 4: Simplify right side
   1,855,831x = 15,064,839,009,025
5. Step 5: Solve for x
   x = 15,064,839,009,025/1,855,831
6. Step 6: Final answer
   x = 8,117,570.52