Finding the Third Proportional to 276,111.50 and 603,919

Step by Step Solution

1. Step 1: Write the proportion equation
   276,111.50 : 603,919 = 603,919 : x
2. Step 2: Convert to fraction form
   276,111.50/603,919 = 603,919/x
3. Step 3: Cross multiply
   276,111.50x = 603,919 × 603,919
4. Step 4: Simplify right side
   276,111.50x = 364,718,158,561
5. Step 5: Solve for x
   x = 364,718,158,561/276,111.50
6. Step 6: Final answer
   x = 1,320,908.98