Finding the Third Proportional to 19,909.75 and 31,074.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,909.75 : 31,074.50 = 31,074.50 : x
2. Step 2: Convert to fraction form
   19,909.75/31,074.50 = 31,074.50/x
3. Step 3: Cross multiply
   19,909.75x = 31,074.50 × 31,074.50
4. Step 4: Simplify right side
   19,909.75x = 965,624,550.25
5. Step 5: Solve for x
   x = 965,624,550.25/19,909.75
6. Step 6: Final answer
   x = 48,500.08