Finding the Third Proportional to 2,021,074 and 4,490,469

Step by Step Solution

1. Step 1: Write the proportion equation
   2,021,074 : 4,490,469 = 4,490,469 : x
2. Step 2: Convert to fraction form
   2,021,074/4,490,469 = 4,490,469/x
3. Step 3: Cross multiply
   2,021,074x = 4,490,469 × 4,490,469
4. Step 4: Simplify right side
   2,021,074x = 20,164,311,839,961
5. Step 5: Solve for x
   x = 20,164,311,839,961/2,021,074
6. Step 6: Final answer
   x = 9,977,027.98