Finding the Third Proportional to 389,082 and 836,288

Step by Step Solution

1. Step 1: Write the proportion equation
   389,082 : 836,288 = 836,288 : x
2. Step 2: Convert to fraction form
   389,082/836,288 = 836,288/x
3. Step 3: Cross multiply
   389,082x = 836,288 × 836,288
4. Step 4: Simplify right side
   389,082x = 699,377,618,944
5. Step 5: Solve for x
   x = 699,377,618,944/389,082
6. Step 6: Final answer
   x = 1,797,507.00