Finding the Third Proportional to 2,021,355 and 4,422,519

Step by Step Solution

1. Step 1: Write the proportion equation
   2,021,355 : 4,422,519 = 4,422,519 : x
2. Step 2: Convert to fraction form
   2,021,355/4,422,519 = 4,422,519/x
3. Step 3: Cross multiply
   2,021,355x = 4,422,519 × 4,422,519
4. Step 4: Simplify right side
   2,021,355x = 19,558,674,305,361
5. Step 5: Solve for x
   x = 19,558,674,305,361/2,021,355
6. Step 6: Final answer
   x = 9,676,021.43