Finding the Third Proportional to 8,431.03 and 13,099.22

Step by Step Solution

1. Step 1: Write the proportion equation
   8,431.03 : 13,099.22 = 13,099.22 : x
2. Step 2: Convert to fraction form
   8,431.03/13,099.22 = 13,099.22/x
3. Step 3: Cross multiply
   8,431.03x = 13,099.22 × 13,099.22
4. Step 4: Simplify right side
   8,431.03x = 171,589,531.86
5. Step 5: Solve for x
   x = 171,589,531.86/8,431.03
6. Step 6: Final answer
   x = 20,352.14