Finding the Third Proportional to 1,427,404 and 2,212,822

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427,404 : 2,212,822 = 2,212,822 : x
2. Step 2: Convert to fraction form
   1,427,404/2,212,822 = 2,212,822/x
3. Step 3: Cross multiply
   1,427,404x = 2,212,822 × 2,212,822
4. Step 4: Simplify right side
   1,427,404x = 4,896,581,203,684
5. Step 5: Solve for x
   x = 4,896,581,203,684/1,427,404
6. Step 6: Final answer
   x = 3,430,410.17