Finding the Third Proportional to 20,914.50 and 31,418.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,914.50 : 31,418.50 = 31,418.50 : x
2. Step 2: Convert to fraction form
   20,914.50/31,418.50 = 31,418.50/x
3. Step 3: Cross multiply
   20,914.50x = 31,418.50 × 31,418.50
4. Step 4: Simplify right side
   20,914.50x = 987,122,142.25
5. Step 5: Solve for x
   x = 987,122,142.25/20,914.50
6. Step 6: Final answer
   x = 47,197.98