Finding the Third Proportional to 276,112.50 and 603,921

Step by Step Solution

1. Step 1: Write the proportion equation
   276,112.50 : 603,921 = 603,921 : x
2. Step 2: Convert to fraction form
   276,112.50/603,921 = 603,921/x
3. Step 3: Cross multiply
   276,112.50x = 603,921 × 603,921
4. Step 4: Simplify right side
   276,112.50x = 364,720,574,241
5. Step 5: Solve for x
   x = 364,720,574,241/276,112.50
6. Step 6: Final answer
   x = 1,320,912.94