Finding the Third Proportional to 13,106.81 and 19,667.81

Step by Step Solution

1. Step 1: Write the proportion equation
   13,106.81 : 19,667.81 = 19,667.81 : x
2. Step 2: Convert to fraction form
   13,106.81/19,667.81 = 19,667.81/x
3. Step 3: Cross multiply
   13,106.81x = 19,667.81 × 19,667.81
4. Step 4: Simplify right side
   13,106.81x = 386,822,848.54
5. Step 5: Solve for x
   x = 386,822,848.54/13,106.81
6. Step 6: Final answer
   x = 29,513.11