Finding the Third Proportional to 404,689.50 and 874,219.50

Step by Step Solution

1. Step 1: Write the proportion equation
   404,689.50 : 874,219.50 = 874,219.50 : x
2. Step 2: Convert to fraction form
   404,689.50/874,219.50 = 874,219.50/x
3. Step 3: Cross multiply
   404,689.50x = 874,219.50 × 874,219.50
4. Step 4: Simplify right side
   404,689.50x = 764,259,734,180.25
5. Step 5: Solve for x
   x = 764,259,734,180.25/404,689.50
6. Step 6: Final answer
   x = 1,888,508.93