Finding the Third Proportional to 13,140 and 19,667.25

Step by Step Solution

1. Step 1: Write the proportion equation
   13,140 : 19,667.25 = 19,667.25 : x
2. Step 2: Convert to fraction form
   13,140/19,667.25 = 19,667.25/x
3. Step 3: Cross multiply
   13,140x = 19,667.25 × 19,667.25
4. Step 4: Simplify right side
   13,140x = 386,800,722.56
5. Step 5: Solve for x
   x = 386,800,722.56/13,140
6. Step 6: Final answer
   x = 29,436.89