Finding the Third Proportional to 20,788 and 43,055

Step by Step Solution

1. Step 1: Write the proportion equation
   20,788 : 43,055 = 43,055 : x
2. Step 2: Convert to fraction form
   20,788/43,055 = 43,055/x
3. Step 3: Cross multiply
   20,788x = 43,055 × 43,055
4. Step 4: Simplify right side
   20,788x = 1,853,733,025
5. Step 5: Solve for x
   x = 1,853,733,025/20,788
6. Step 6: Final answer
   x = 89,173.23