Finding the Third Proportional to 1,392,195 and 2,215,274

Step by Step Solution

1. Step 1: Write the proportion equation
   1,392,195 : 2,215,274 = 2,215,274 : x
2. Step 2: Convert to fraction form
   1,392,195/2,215,274 = 2,215,274/x
3. Step 3: Cross multiply
   1,392,195x = 2,215,274 × 2,215,274
4. Step 4: Simplify right side
   1,392,195x = 4,907,438,895,076
5. Step 5: Solve for x
   x = 4,907,438,895,076/1,392,195
6. Step 6: Final answer
   x = 3,524,965.18