Finding the Third Proportional to 1,604.81 and 3,431.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,604.81 : 3,431.53 = 3,431.53 : x
2. Step 2: Convert to fraction form
   1,604.81/3,431.53 = 3,431.53/x
3. Step 3: Cross multiply
   1,604.81x = 3,431.53 × 3,431.53
4. Step 4: Simplify right side
   1,604.81x = 11,775,406.72
5. Step 5: Solve for x
   x = 11,775,406.72/1,604.81
6. Step 6: Final answer
   x = 7,337.56