Finding the Third Proportional to 20,029.78 and 31,137.33

Step by Step Solution

1. Step 1: Write the proportion equation
   20,029.78 : 31,137.33 = 31,137.33 : x
2. Step 2: Convert to fraction form
   20,029.78/31,137.33 = 31,137.33/x
3. Step 3: Cross multiply
   20,029.78x = 31,137.33 × 31,137.33
4. Step 4: Simplify right side
   20,029.78x = 969,533,202.76
5. Step 5: Solve for x
   x = 969,533,202.76/20,029.78
6. Step 6: Final answer
   x = 48,404.58