Finding the Third Proportional to 2,617 and 5,688.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,617 : 5,688.50 = 5,688.50 : x
2. Step 2: Convert to fraction form
   2,617/5,688.50 = 5,688.50/x
3. Step 3: Cross multiply
   2,617x = 5,688.50 × 5,688.50
4. Step 4: Simplify right side
   2,617x = 32,359,032.25
5. Step 5: Solve for x
   x = 32,359,032.25/2,617
6. Step 6: Final answer
   x = 12,364.93