Finding the Third Proportional to 1,561,344 and 3,426,816

Step by Step Solution

1. Step 1: Write the proportion equation
   1,561,344 : 3,426,816 = 3,426,816 : x
2. Step 2: Convert to fraction form
   1,561,344/3,426,816 = 3,426,816/x
3. Step 3: Cross multiply
   1,561,344x = 3,426,816 × 3,426,816
4. Step 4: Simplify right side
   1,561,344x = 11,743,067,897,856
5. Step 5: Solve for x
   x = 11,743,067,897,856/1,561,344
6. Step 6: Final answer
   x = 7,521,127.89