Finding the Third Proportional to 561,844 and 1,228,788

Step by Step Solution

1. Step 1: Write the proportion equation
   561,844 : 1,228,788 = 1,228,788 : x
2. Step 2: Convert to fraction form
   561,844/1,228,788 = 1,228,788/x
3. Step 3: Cross multiply
   561,844x = 1,228,788 × 1,228,788
4. Step 4: Simplify right side
   561,844x = 1,509,919,948,944
5. Step 5: Solve for x
   x = 1,509,919,948,944/561,844
6. Step 6: Final answer
   x = 2,687,436.28