Finding the Third Proportional to 1,219,296 and 1,644,768

Step by Step Solution

1. Step 1: Write the proportion equation
   1,219,296 : 1,644,768 = 1,644,768 : x
2. Step 2: Convert to fraction form
   1,219,296/1,644,768 = 1,644,768/x
3. Step 3: Cross multiply
   1,219,296x = 1,644,768 × 1,644,768
4. Step 4: Simplify right side
   1,219,296x = 2,705,261,773,824
5. Step 5: Solve for x
   x = 2,705,261,773,824/1,219,296
6. Step 6: Final answer
   x = 2,218,707.99