Finding the Third Proportional to 13,717.50 and 28,513.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,717.50 : 28,513.50 = 28,513.50 : x
2. Step 2: Convert to fraction form
   13,717.50/28,513.50 = 28,513.50/x
3. Step 3: Cross multiply
   13,717.50x = 28,513.50 × 28,513.50
4. Step 4: Simplify right side
   13,717.50x = 813,019,682.25
5. Step 5: Solve for x
   x = 813,019,682.25/13,717.50
6. Step 6: Final answer
   x = 59,268.79