Finding the Third Proportional to 1,822,431 and 4,218,954

Step by Step Solution

1. Step 1: Write the proportion equation
   1,822,431 : 4,218,954 = 4,218,954 : x
2. Step 2: Convert to fraction form
   1,822,431/4,218,954 = 4,218,954/x
3. Step 3: Cross multiply
   1,822,431x = 4,218,954 × 4,218,954
4. Step 4: Simplify right side
   1,822,431x = 17,799,572,854,116
5. Step 5: Solve for x
   x = 17,799,572,854,116/1,822,431
6. Step 6: Final answer
   x = 9,766,939.24