Finding the Third Proportional to 404,205 and 880,171

Step by Step Solution

1. Step 1: Write the proportion equation
   404,205 : 880,171 = 880,171 : x
2. Step 2: Convert to fraction form
   404,205/880,171 = 880,171/x
3. Step 3: Cross multiply
   404,205x = 880,171 × 880,171
4. Step 4: Simplify right side
   404,205x = 774,700,989,241
5. Step 5: Solve for x
   x = 774,700,989,241/404,205
6. Step 6: Final answer
   x = 1,916,604.17