Finding the Third Proportional to 107,919 and 220,120.50

Step by Step Solution

1. Step 1: Write the proportion equation
   107,919 : 220,120.50 = 220,120.50 : x
2. Step 2: Convert to fraction form
   107,919/220,120.50 = 220,120.50/x
3. Step 3: Cross multiply
   107,919x = 220,120.50 × 220,120.50
4. Step 4: Simplify right side
   107,919x = 48,453,034,520.25
5. Step 5: Solve for x
   x = 48,453,034,520.25/107,919
6. Step 6: Final answer
   x = 448,975.94