Finding the Third Proportional to 2,257,822 and 3,218,557

Step by Step Solution

1. Step 1: Write the proportion equation
   2,257,822 : 3,218,557 = 3,218,557 : x
2. Step 2: Convert to fraction form
   2,257,822/3,218,557 = 3,218,557/x
3. Step 3: Cross multiply
   2,257,822x = 3,218,557 × 3,218,557
4. Step 4: Simplify right side
   2,257,822x = 10,359,109,162,249
5. Step 5: Solve for x
   x = 10,359,109,162,249/2,257,822
6. Step 6: Final answer
   x = 4,588,098.25