Finding the Third Proportional to 389,697.75 and 855,940.50

Step by Step Solution

1. Step 1: Write the proportion equation
   389,697.75 : 855,940.50 = 855,940.50 : x
2. Step 2: Convert to fraction form
   389,697.75/855,940.50 = 855,940.50/x
3. Step 3: Cross multiply
   389,697.75x = 855,940.50 × 855,940.50
4. Step 4: Simplify right side
   389,697.75x = 732,634,139,540.25
5. Step 5: Solve for x
   x = 732,634,139,540.25/389,697.75
6. Step 6: Final answer
   x = 1,880,006.08