Finding the Third Proportional to 3,918.38 and 5,773.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,918.38 : 5,773.78 = 5,773.78 : x
2. Step 2: Convert to fraction form
   3,918.38/5,773.78 = 5,773.78/x
3. Step 3: Cross multiply
   3,918.38x = 5,773.78 × 5,773.78
4. Step 4: Simplify right side
   3,918.38x = 33,336,549.92
5. Step 5: Solve for x
   x = 33,336,549.92/3,918.38
6. Step 6: Final answer
   x = 8,507.75