Finding the Third Proportional to 404,213 and 880,189

Step by Step Solution

1. Step 1: Write the proportion equation
   404,213 : 880,189 = 880,189 : x
2. Step 2: Convert to fraction form
   404,213/880,189 = 880,189/x
3. Step 3: Cross multiply
   404,213x = 880,189 × 880,189
4. Step 4: Simplify right side
   404,213x = 774,732,675,721
5. Step 5: Solve for x
   x = 774,732,675,721/404,213
6. Step 6: Final answer
   x = 1,916,644.63