Finding the Third Proportional to 918,223 and 1,983,988

Step by Step Solution

1. Step 1: Write the proportion equation
   918,223 : 1,983,988 = 1,983,988 : x
2. Step 2: Convert to fraction form
   918,223/1,983,988 = 1,983,988/x
3. Step 3: Cross multiply
   918,223x = 1,983,988 × 1,983,988
4. Step 4: Simplify right side
   918,223x = 3,936,208,384,144
5. Step 5: Solve for x
   x = 3,936,208,384,144/918,223
6. Step 6: Final answer
   x = 4,286,767.36