Finding the Third Proportional to 18,771.75 and 31,559.63

Step by Step Solution

1. Step 1: Write the proportion equation
   18,771.75 : 31,559.63 = 31,559.63 : x
2. Step 2: Convert to fraction form
   18,771.75/31,559.63 = 31,559.63/x
3. Step 3: Cross multiply
   18,771.75x = 31,559.63 × 31,559.63
4. Step 4: Simplify right side
   18,771.75x = 996,009,930.14
5. Step 5: Solve for x
   x = 996,009,930.14/18,771.75
6. Step 6: Final answer
   x = 53,058.98