Finding the Third Proportional to 403,760 and 874,404

Step by Step Solution

1. Step 1: Write the proportion equation
   403,760 : 874,404 = 874,404 : x
2. Step 2: Convert to fraction form
   403,760/874,404 = 874,404/x
3. Step 3: Cross multiply
   403,760x = 874,404 × 874,404
4. Step 4: Simplify right side
   403,760x = 764,582,355,216
5. Step 5: Solve for x
   x = 764,582,355,216/403,760
6. Step 6: Final answer
   x = 1,893,655.53