Finding the Third Proportional to 786,974 and 1,189,821

Step by Step Solution

1. Step 1: Write the proportion equation
   786,974 : 1,189,821 = 1,189,821 : x
2. Step 2: Convert to fraction form
   786,974/1,189,821 = 1,189,821/x
3. Step 3: Cross multiply
   786,974x = 1,189,821 × 1,189,821
4. Step 4: Simplify right side
   786,974x = 1,415,674,012,041
5. Step 5: Solve for x
   x = 1,415,674,012,041/786,974
6. Step 6: Final answer
   x = 1,798,882.82