Finding the Third Proportional to 276,636 and 603,541.50

Step by Step Solution

1. Step 1: Write the proportion equation
   276,636 : 603,541.50 = 603,541.50 : x
2. Step 2: Convert to fraction form
   276,636/603,541.50 = 603,541.50/x
3. Step 3: Cross multiply
   276,636x = 603,541.50 × 603,541.50
4. Step 4: Simplify right side
   276,636x = 364,262,342,222.25
5. Step 5: Solve for x
   x = 364,262,342,222.25/276,636
6. Step 6: Final answer
   x = 1,316,756.83