Finding the Third Proportional to 1,394,868 and 2,155,392

Step by Step Solution

1. Step 1: Write the proportion equation
   1,394,868 : 2,155,392 = 2,155,392 : x
2. Step 2: Convert to fraction form
   1,394,868/2,155,392 = 2,155,392/x
3. Step 3: Cross multiply
   1,394,868x = 2,155,392 × 2,155,392
4. Step 4: Simplify right side
   1,394,868x = 4,645,714,673,664
5. Step 5: Solve for x
   x = 4,645,714,673,664/1,394,868
6. Step 6: Final answer
   x = 3,330,576.57