Finding the Third Proportional to 276,619.50 and 603,507

Step by Step Solution

1. Step 1: Write the proportion equation
   276,619.50 : 603,507 = 603,507 : x
2. Step 2: Convert to fraction form
   276,619.50/603,507 = 603,507/x
3. Step 3: Cross multiply
   276,619.50x = 603,507 × 603,507
4. Step 4: Simplify right side
   276,619.50x = 364,220,699,049
5. Step 5: Solve for x
   x = 364,220,699,049/276,619.50
6. Step 6: Final answer
   x = 1,316,684.83