Finding the Third Proportional to 12,343.13 and 17,638.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,343.13 : 17,638.31 = 17,638.31 : x
2. Step 2: Convert to fraction form
   12,343.13/17,638.31 = 17,638.31/x
3. Step 3: Cross multiply
   12,343.13x = 17,638.31 × 17,638.31
4. Step 4: Simplify right side
   12,343.13x = 311,110,067.85
5. Step 5: Solve for x
   x = 311,110,067.85/12,343.13
6. Step 6: Final answer
   x = 25,205.13