Finding the Third Proportional to 403,519.50 and 885,405

Step by Step Solution

1. Step 1: Write the proportion equation
   403,519.50 : 885,405 = 885,405 : x
2. Step 2: Convert to fraction form
   403,519.50/885,405 = 885,405/x
3. Step 3: Cross multiply
   403,519.50x = 885,405 × 885,405
4. Step 4: Simplify right side
   403,519.50x = 783,942,014,025
5. Step 5: Solve for x
   x = 783,942,014,025/403,519.50
6. Step 6: Final answer
   x = 1,942,761.17