Finding the Third Proportional to 1,822,436 and 4,218,965

Step by Step Solution

1. Step 1: Write the proportion equation
   1,822,436 : 4,218,965 = 4,218,965 : x
2. Step 2: Convert to fraction form
   1,822,436/4,218,965 = 4,218,965/x
3. Step 3: Cross multiply
   1,822,436x = 4,218,965 × 4,218,965
4. Step 4: Simplify right side
   1,822,436x = 17,799,665,671,225
5. Step 5: Solve for x
   x = 17,799,665,671,225/1,822,436
6. Step 6: Final answer
   x = 9,766,963.38