Finding the Third Proportional to 1,871.86 and 3,936.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,871.86 : 3,936.73 = 3,936.73 : x
2. Step 2: Convert to fraction form
   1,871.86/3,936.73 = 3,936.73/x
3. Step 3: Cross multiply
   1,871.86x = 3,936.73 × 3,936.73
4. Step 4: Simplify right side
   1,871.86x = 15,497,816.03
5. Step 5: Solve for x
   x = 15,497,816.03/1,871.86
6. Step 6: Final answer
   x = 8,279.37