Finding the Third Proportional to 1,425,195 and 2,139,669

Step by Step Solution

1. Step 1: Write the proportion equation
   1,425,195 : 2,139,669 = 2,139,669 : x
2. Step 2: Convert to fraction form
   1,425,195/2,139,669 = 2,139,669/x
3. Step 3: Cross multiply
   1,425,195x = 2,139,669 × 2,139,669
4. Step 4: Simplify right side
   1,425,195x = 4,578,183,429,561
5. Step 5: Solve for x
   x = 4,578,183,429,561/1,425,195
6. Step 6: Final answer
   x = 3,212,320.72