Finding the Third Proportional to 1,992,156 and 4,223,718

Step by Step Solution

1. Step 1: Write the proportion equation
   1,992,156 : 4,223,718 = 4,223,718 : x
2. Step 2: Convert to fraction form
   1,992,156/4,223,718 = 4,223,718/x
3. Step 3: Cross multiply
   1,992,156x = 4,223,718 × 4,223,718
4. Step 4: Simplify right side
   1,992,156x = 17,839,793,743,524
5. Step 5: Solve for x
   x = 17,839,793,743,524/1,992,156
6. Step 6: Final answer
   x = 8,955,018.45