Finding the Third Proportional to 8,713 and 10,906.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,713 : 10,906.50 = 10,906.50 : x
2. Step 2: Convert to fraction form
   8,713/10,906.50 = 10,906.50/x
3. Step 3: Cross multiply
   8,713x = 10,906.50 × 10,906.50
4. Step 4: Simplify right side
   8,713x = 118,951,742.25
5. Step 5: Solve for x
   x = 118,951,742.25/8,713
6. Step 6: Final answer
   x = 13,652.21