Finding the Third Proportional to 20,865.73 and 45,729.56

Step by Step Solution

1. Step 1: Write the proportion equation
   20,865.73 : 45,729.56 = 45,729.56 : x
2. Step 2: Convert to fraction form
   20,865.73/45,729.56 = 45,729.56/x
3. Step 3: Cross multiply
   20,865.73x = 45,729.56 × 45,729.56
4. Step 4: Simplify right side
   20,865.73x = 2,091,192,886.44
5. Step 5: Solve for x
   x = 2,091,192,886.44/20,865.73
6. Step 6: Final answer
   x = 100,221.43