Finding the Third Proportional to 12,808.13 and 19,249.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,808.13 : 19,249.31 = 19,249.31 : x
2. Step 2: Convert to fraction form
   12,808.13/19,249.31 = 19,249.31/x
3. Step 3: Cross multiply
   12,808.13x = 19,249.31 × 19,249.31
4. Step 4: Simplify right side
   12,808.13x = 370,536,031.72
5. Step 5: Solve for x
   x = 370,536,031.72/12,808.13
6. Step 6: Final answer
   x = 28,929.76