Finding the Third Proportional to 789,678 and 1,271,727

Step by Step Solution

1. Step 1: Write the proportion equation
   789,678 : 1,271,727 = 1,271,727 : x
2. Step 2: Convert to fraction form
   789,678/1,271,727 = 1,271,727/x
3. Step 3: Cross multiply
   789,678x = 1,271,727 × 1,271,727
4. Step 4: Simplify right side
   789,678x = 1,617,289,562,529
5. Step 5: Solve for x
   x = 1,617,289,562,529/789,678
6. Step 6: Final answer
   x = 2,048,036.75