Finding the Third Proportional to 20,550.38 and 42,663.38

Step by Step Solution

1. Step 1: Write the proportion equation
   20,550.38 : 42,663.38 = 42,663.38 : x
2. Step 2: Convert to fraction form
   20,550.38/42,663.38 = 42,663.38/x
3. Step 3: Cross multiply
   20,550.38x = 42,663.38 × 42,663.38
4. Step 4: Simplify right side
   20,550.38x = 1,820,163,566.39
5. Step 5: Solve for x
   x = 1,820,163,566.39/20,550.38
6. Step 6: Final answer
   x = 88,570.82