Finding the Third Proportional to 2,688.94 and 5,704.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,688.94 : 5,704.31 = 5,704.31 : x
2. Step 2: Convert to fraction form
   2,688.94/5,704.31 = 5,704.31/x
3. Step 3: Cross multiply
   2,688.94x = 5,704.31 × 5,704.31
4. Step 4: Simplify right side
   2,688.94x = 32,539,181.10
5. Step 5: Solve for x
   x = 32,539,181.10/2,688.94
6. Step 6: Final answer
   x = 12,101.13