Finding the Third Proportional to 2,021,422 and 4,422,655

Step by Step Solution

1. Step 1: Write the proportion equation
   2,021,422 : 4,422,655 = 4,422,655 : x
2. Step 2: Convert to fraction form
   2,021,422/4,422,655 = 4,422,655/x
3. Step 3: Cross multiply
   2,021,422x = 4,422,655 × 4,422,655
4. Step 4: Simplify right side
   2,021,422x = 19,559,877,249,025
5. Step 5: Solve for x
   x = 19,559,877,249,025/2,021,422
6. Step 6: Final answer
   x = 9,676,295.82