Finding the Third Proportional to 1,209,904 and 1,644,160

Step by Step Solution

1. Step 1: Write the proportion equation
   1,209,904 : 1,644,160 = 1,644,160 : x
2. Step 2: Convert to fraction form
   1,209,904/1,644,160 = 1,644,160/x
3. Step 3: Cross multiply
   1,209,904x = 1,644,160 × 1,644,160
4. Step 4: Simplify right side
   1,209,904x = 2,703,262,105,600
5. Step 5: Solve for x
   x = 2,703,262,105,600/1,209,904
6. Step 6: Final answer
   x = 2,234,278.18