Finding the Third Proportional to 403,520 and 885,404

Step by Step Solution

1. Step 1: Write the proportion equation
   403,520 : 885,404 = 885,404 : x
2. Step 2: Convert to fraction form
   403,520/885,404 = 885,404/x
3. Step 3: Cross multiply
   403,520x = 885,404 × 885,404
4. Step 4: Simplify right side
   403,520x = 783,940,243,216
5. Step 5: Solve for x
   x = 783,940,243,216/403,520
6. Step 6: Final answer
   x = 1,942,754.37