Finding the Third Proportional to 1,221,760 and 1,606,612

Step by Step Solution

1. Step 1: Write the proportion equation
   1,221,760 : 1,606,612 = 1,606,612 : x
2. Step 2: Convert to fraction form
   1,221,760/1,606,612 = 1,606,612/x
3. Step 3: Cross multiply
   1,221,760x = 1,606,612 × 1,606,612
4. Step 4: Simplify right side
   1,221,760x = 2,581,202,118,544
5. Step 5: Solve for x
   x = 2,581,202,118,544/1,221,760
6. Step 6: Final answer
   x = 2,112,691.62