Finding the Third Proportional to 1,869.05 and 3,931.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,869.05 : 3,931.73 = 3,931.73 : x
2. Step 2: Convert to fraction form
   1,869.05/3,931.73 = 3,931.73/x
3. Step 3: Cross multiply
   1,869.05x = 3,931.73 × 3,931.73
4. Step 4: Simplify right side
   1,869.05x = 15,458,535.20
5. Step 5: Solve for x
   x = 15,458,535.20/1,869.05
6. Step 6: Final answer
   x = 8,270.81