Finding the Third Proportional to 13,109.63 and 19,665.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,109.63 : 19,665.56 = 19,665.56 : x
2. Step 2: Convert to fraction form
   13,109.63/19,665.56 = 19,665.56/x
3. Step 3: Cross multiply
   13,109.63x = 19,665.56 × 19,665.56
4. Step 4: Simplify right side
   13,109.63x = 386,734,348.44
5. Step 5: Solve for x
   x = 386,734,348.44/13,109.63
6. Step 6: Final answer
   x = 29,500.03