Finding the Third Proportional to 2,557,139 and 3,882,365

Step by Step Solution

1. Step 1: Write the proportion equation
   2,557,139 : 3,882,365 = 3,882,365 : x
2. Step 2: Convert to fraction form
   2,557,139/3,882,365 = 3,882,365/x
3. Step 3: Cross multiply
   2,557,139x = 3,882,365 × 3,882,365
4. Step 4: Simplify right side
   2,557,139x = 15,072,757,993,225
5. Step 5: Solve for x
   x = 15,072,757,993,225/2,557,139
6. Step 6: Final answer
   x = 5,894,383.53