Finding the Third Proportional to 12,697.59 and 19,650.09

Step by Step Solution

1. Step 1: Write the proportion equation
   12,697.59 : 19,650.09 = 19,650.09 : x
2. Step 2: Convert to fraction form
   12,697.59/19,650.09 = 19,650.09/x
3. Step 3: Cross multiply
   12,697.59x = 19,650.09 × 19,650.09
4. Step 4: Simplify right side
   12,697.59x = 386,126,184.38
5. Step 5: Solve for x
   x = 386,126,184.38/12,697.59
6. Step 6: Final answer
   x = 30,409.40