Finding the Third Proportional to 20,349.38 and 42,258.38

Step by Step Solution

1. Step 1: Write the proportion equation
   20,349.38 : 42,258.38 = 42,258.38 : x
2. Step 2: Convert to fraction form
   20,349.38/42,258.38 = 42,258.38/x
3. Step 3: Cross multiply
   20,349.38x = 42,258.38 × 42,258.38
4. Step 4: Simplify right side
   20,349.38x = 1,785,770,257.64
5. Step 5: Solve for x
   x = 1,785,770,257.64/20,349.38
6. Step 6: Final answer
   x = 87,755.53