Finding the Third Proportional to 1,823,574 and 4,221,249

Step by Step Solution

1. Step 1: Write the proportion equation
   1,823,574 : 4,221,249 = 4,221,249 : x
2. Step 2: Convert to fraction form
   1,823,574/4,221,249 = 4,221,249/x
3. Step 3: Cross multiply
   1,823,574x = 4,221,249 × 4,221,249
4. Step 4: Simplify right side
   1,823,574x = 17,818,943,120,001
5. Step 5: Solve for x
   x = 17,818,943,120,001/1,823,574
6. Step 6: Final answer
   x = 9,771,439.56