Finding the Third Proportional to 8,231.63 and 13,059.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,231.63 : 13,059.56 = 13,059.56 : x
2. Step 2: Convert to fraction form
   8,231.63/13,059.56 = 13,059.56/x
3. Step 3: Cross multiply
   8,231.63x = 13,059.56 × 13,059.56
4. Step 4: Simplify right side
   8,231.63x = 170,552,172.69
5. Step 5: Solve for x
   x = 170,552,172.69/8,231.63
6. Step 6: Final answer
   x = 20,719.14