Finding the Third Proportional to 20,560.50 and 31,257.56

Step by Step Solution

1. Step 1: Write the proportion equation
   20,560.50 : 31,257.56 = 31,257.56 : x
2. Step 2: Convert to fraction form
   20,560.50/31,257.56 = 31,257.56/x
3. Step 3: Cross multiply
   20,560.50x = 31,257.56 × 31,257.56
4. Step 4: Simplify right side
   20,560.50x = 977,035,213.44
5. Step 5: Solve for x
   x = 977,035,213.44/20,560.50
6. Step 6: Final answer
   x = 47,520.01