Finding the Third Proportional to 1,427,394 and 2,212,806

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427,394 : 2,212,806 = 2,212,806 : x
2. Step 2: Convert to fraction form
   1,427,394/2,212,806 = 2,212,806/x
3. Step 3: Cross multiply
   1,427,394x = 2,212,806 × 2,212,806
4. Step 4: Simplify right side
   1,427,394x = 4,896,510,393,636
5. Step 5: Solve for x
   x = 4,896,510,393,636/1,427,394
6. Step 6: Final answer
   x = 3,430,384.60