Finding the Third Proportional to 12,351.23 and 18,493.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,351.23 : 18,493.31 = 18,493.31 : x
2. Step 2: Convert to fraction form
   12,351.23/18,493.31 = 18,493.31/x
3. Step 3: Cross multiply
   12,351.23x = 18,493.31 × 18,493.31
4. Step 4: Simplify right side
   12,351.23x = 342,002,607.22
5. Step 5: Solve for x
   x = 342,002,607.22/12,351.23
6. Step 6: Final answer
   x = 27,689.75