Finding the Third Proportional to 1,864.69 and 3,945.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,864.69 : 3,945.38 = 3,945.38 : x
2. Step 2: Convert to fraction form
   1,864.69/3,945.38 = 3,945.38/x
3. Step 3: Cross multiply
   1,864.69x = 3,945.38 × 3,945.38
4. Step 4: Simplify right side
   1,864.69x = 15,565,983.89
5. Step 5: Solve for x
   x = 15,565,983.89/1,864.69
6. Step 6: Final answer
   x = 8,347.77