Finding the Third Proportional to 3,555.38 and 7,655.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,555.38 : 7,655.81 = 7,655.81 : x
2. Step 2: Convert to fraction form
   3,555.38/7,655.81 = 7,655.81/x
3. Step 3: Cross multiply
   3,555.38x = 7,655.81 × 7,655.81
4. Step 4: Simplify right side
   3,555.38x = 58,611,465.04
5. Step 5: Solve for x
   x = 58,611,465.04/3,555.38
6. Step 6: Final answer
   x = 16,485.31