Finding the Third Proportional to 889,768 and 1,378,884

Step by Step Solution

1. Step 1: Write the proportion equation
   889,768 : 1,378,884 = 1,378,884 : x
2. Step 2: Convert to fraction form
   889,768/1,378,884 = 1,378,884/x
3. Step 3: Cross multiply
   889,768x = 1,378,884 × 1,378,884
4. Step 4: Simplify right side
   889,768x = 1,901,321,085,456
5. Step 5: Solve for x
   x = 1,901,321,085,456/889,768
6. Step 6: Final answer
   x = 2,136,872.85