Finding the Third Proportional to 1,011,449 and 2,151,623

Step by Step Solution

1. Step 1: Write the proportion equation
   1,011,449 : 2,151,623 = 2,151,623 : x
2. Step 2: Convert to fraction form
   1,011,449/2,151,623 = 2,151,623/x
3. Step 3: Cross multiply
   1,011,449x = 2,151,623 × 2,151,623
4. Step 4: Simplify right side
   1,011,449x = 4,629,481,534,129
5. Step 5: Solve for x
   x = 4,629,481,534,129/1,011,449
6. Step 6: Final answer
   x = 4,577,078.56