Finding the Third Proportional to 1,438,518 and 3,054,357

Step by Step Solution

1. Step 1: Write the proportion equation
   1,438,518 : 3,054,357 = 3,054,357 : x
2. Step 2: Convert to fraction form
   1,438,518/3,054,357 = 3,054,357/x
3. Step 3: Cross multiply
   1,438,518x = 3,054,357 × 3,054,357
4. Step 4: Simplify right side
   1,438,518x = 9,329,096,683,449
5. Step 5: Solve for x
   x = 9,329,096,683,449/1,438,518
6. Step 6: Final answer
   x = 6,485,213.73