Finding the Third Proportional to 19,851.75 and 30,715.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,851.75 : 30,715.50 = 30,715.50 : x
2. Step 2: Convert to fraction form
   19,851.75/30,715.50 = 30,715.50/x
3. Step 3: Cross multiply
   19,851.75x = 30,715.50 × 30,715.50
4. Step 4: Simplify right side
   19,851.75x = 943,441,940.25
5. Step 5: Solve for x
   x = 943,441,940.25/19,851.75
6. Step 6: Final answer
   x = 47,524.37