Finding the Third Proportional to 276,780 and 451,951.50

Step by Step Solution

1. Step 1: Write the proportion equation
   276,780 : 451,951.50 = 451,951.50 : x
2. Step 2: Convert to fraction form
   276,780/451,951.50 = 451,951.50/x
3. Step 3: Cross multiply
   276,780x = 451,951.50 × 451,951.50
4. Step 4: Simplify right side
   276,780x = 204,260,158,352.25
5. Step 5: Solve for x
   x = 204,260,158,352.25/276,780
6. Step 6: Final answer
   x = 737,987.42