Finding the Third Proportional to 1,822,434 and 4,218,963

Step by Step Solution

1. Step 1: Write the proportion equation
   1,822,434 : 4,218,963 = 4,218,963 : x
2. Step 2: Convert to fraction form
   1,822,434/4,218,963 = 4,218,963/x
3. Step 3: Cross multiply
   1,822,434x = 4,218,963 × 4,218,963
4. Step 4: Simplify right side
   1,822,434x = 17,799,648,795,369
5. Step 5: Solve for x
   x = 17,799,648,795,369/1,822,434
6. Step 6: Final answer
   x = 9,766,964.84