Finding the Third Proportional to 511,780 and 1,189,738

Step by Step Solution

1. Step 1: Write the proportion equation
   511,780 : 1,189,738 = 1,189,738 : x
2. Step 2: Convert to fraction form
   511,780/1,189,738 = 1,189,738/x
3. Step 3: Cross multiply
   511,780x = 1,189,738 × 1,189,738
4. Step 4: Simplify right side
   511,780x = 1,415,476,508,644
5. Step 5: Solve for x
   x = 1,415,476,508,644/511,780
6. Step 6: Final answer
   x = 2,765,790.98