Finding the Third Proportional to 3,288.38 and 4,921.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,288.38 : 4,921.31 = 4,921.31 : x
2. Step 2: Convert to fraction form
   3,288.38/4,921.31 = 4,921.31/x
3. Step 3: Cross multiply
   3,288.38x = 4,921.31 × 4,921.31
4. Step 4: Simplify right side
   3,288.38x = 24,219,316.72
5. Step 5: Solve for x
   x = 24,219,316.72/3,288.38
6. Step 6: Final answer
   x = 7,365.13