Finding the Third Proportional to 20,631.38 and 30,992.63

Step by Step Solution

1. Step 1: Write the proportion equation
   20,631.38 : 30,992.63 = 30,992.63 : x
2. Step 2: Convert to fraction form
   20,631.38/30,992.63 = 30,992.63/x
3. Step 3: Cross multiply
   20,631.38x = 30,992.63 × 30,992.63
4. Step 4: Simplify right side
   20,631.38x = 960,542,804.39
5. Step 5: Solve for x
   x = 960,542,804.39/20,631.38
6. Step 6: Final answer
   x = 46,557.38