Finding the Third Proportional to 792,603 and 1,227,789

Step by Step Solution

1. Step 1: Write the proportion equation
   792,603 : 1,227,789 = 1,227,789 : x
2. Step 2: Convert to fraction form
   792,603/1,227,789 = 1,227,789/x
3. Step 3: Cross multiply
   792,603x = 1,227,789 × 1,227,789
4. Step 4: Simplify right side
   792,603x = 1,507,465,828,521
5. Step 5: Solve for x
   x = 1,507,465,828,521/792,603
6. Step 6: Final answer
   x = 1,901,917.89