Finding the Third Proportional to 1,238,016 and 2,678,784

Step by Step Solution

1. Step 1: Write the proportion equation
   1,238,016 : 2,678,784 = 2,678,784 : x
2. Step 2: Convert to fraction form
   1,238,016/2,678,784 = 2,678,784/x
3. Step 3: Cross multiply
   1,238,016x = 2,678,784 × 2,678,784
4. Step 4: Simplify right side
   1,238,016x = 7,175,883,718,656
5. Step 5: Solve for x
   x = 7,175,883,718,656/1,238,016
6. Step 6: Final answer
   x = 5,796,277.04