Finding the Third Proportional to 13,056.19 and 20,305.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,056.19 : 20,305.69 = 20,305.69 : x
2. Step 2: Convert to fraction form
   13,056.19/20,305.69 = 20,305.69/x
3. Step 3: Cross multiply
   13,056.19x = 20,305.69 × 20,305.69
4. Step 4: Simplify right side
   13,056.19x = 412,320,944.85
5. Step 5: Solve for x
   x = 412,320,944.85/13,056.19
6. Step 6: Final answer
   x = 31,580.50