Finding the Third Proportional to 889,744 and 1,378,864

Step by Step Solution

1. Step 1: Write the proportion equation
   889,744 : 1,378,864 = 1,378,864 : x
2. Step 2: Convert to fraction form
   889,744/1,378,864 = 1,378,864/x
3. Step 3: Cross multiply
   889,744x = 1,378,864 × 1,378,864
4. Step 4: Simplify right side
   889,744x = 1,901,265,930,496
5. Step 5: Solve for x
   x = 1,901,265,930,496/889,744
6. Step 6: Final answer
   x = 2,136,868.50