Finding the Third Proportional to 1,210,270 and 1,644,540

Step by Step Solution

1. Step 1: Write the proportion equation
   1,210,270 : 1,644,540 = 1,644,540 : x
2. Step 2: Convert to fraction form
   1,210,270/1,644,540 = 1,644,540/x
3. Step 3: Cross multiply
   1,210,270x = 1,644,540 × 1,644,540
4. Step 4: Simplify right side
   1,210,270x = 2,704,511,811,600
5. Step 5: Solve for x
   x = 2,704,511,811,600/1,210,270
6. Step 6: Final answer
   x = 2,234,635.09