Finding the Third Proportional to 13,213.13 and 26,790.75

Step by Step Solution

1. Step 1: Write the proportion equation
   13,213.13 : 26,790.75 = 26,790.75 : x
2. Step 2: Convert to fraction form
   13,213.13/26,790.75 = 26,790.75/x
3. Step 3: Cross multiply
   13,213.13x = 26,790.75 × 26,790.75
4. Step 4: Simplify right side
   13,213.13x = 717,744,285.56
5. Step 5: Solve for x
   x = 717,744,285.56/13,213.13
6. Step 6: Final answer
   x = 54,320.56