Finding the Third Proportional to 1,268,784 and 2,789,920

Step by Step Solution

1. Step 1: Write the proportion equation
   1,268,784 : 2,789,920 = 2,789,920 : x
2. Step 2: Convert to fraction form
   1,268,784/2,789,920 = 2,789,920/x
3. Step 3: Cross multiply
   1,268,784x = 2,789,920 × 2,789,920
4. Step 4: Simplify right side
   1,268,784x = 7,783,653,606,400
5. Step 5: Solve for x
   x = 7,783,653,606,400/1,268,784
6. Step 6: Final answer
   x = 6,134,735.00