Finding the Third Proportional to 1,822,436 and 4,218,968

Step by Step Solution

1. Step 1: Write the proportion equation
   1,822,436 : 4,218,968 = 4,218,968 : x
2. Step 2: Convert to fraction form
   1,822,436/4,218,968 = 4,218,968/x
3. Step 3: Cross multiply
   1,822,436x = 4,218,968 × 4,218,968
4. Step 4: Simplify right side
   1,822,436x = 17,799,690,985,024
5. Step 5: Solve for x
   x = 17,799,690,985,024/1,822,436
6. Step 6: Final answer
   x = 9,766,977.27