Finding the Third Proportional to 1,509,618 and 2,202,195

Step by Step Solution

1. Step 1: Write the proportion equation
   1,509,618 : 2,202,195 = 2,202,195 : x
2. Step 2: Convert to fraction form
   1,509,618/2,202,195 = 2,202,195/x
3. Step 3: Cross multiply
   1,509,618x = 2,202,195 × 2,202,195
4. Step 4: Simplify right side
   1,509,618x = 4,849,662,818,025
5. Step 5: Solve for x
   x = 4,849,662,818,025/1,509,618
6. Step 6: Final answer
   x = 3,212,509.93