Finding the Third Proportional to 3,355.31 and 7,381.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,355.31 : 7,381.69 = 7,381.69 : x
2. Step 2: Convert to fraction form
   3,355.31/7,381.69 = 7,381.69/x
3. Step 3: Cross multiply
   3,355.31x = 7,381.69 × 7,381.69
4. Step 4: Simplify right side
   3,355.31x = 54,489,310.35
5. Step 5: Solve for x
   x = 54,489,310.35/3,355.31
6. Step 6: Final answer
   x = 16,239.71