Finding the Third Proportional to 279,859.50 and 603,945

Step by Step Solution

1. Step 1: Write the proportion equation
   279,859.50 : 603,945 = 603,945 : x
2. Step 2: Convert to fraction form
   279,859.50/603,945 = 603,945/x
3. Step 3: Cross multiply
   279,859.50x = 603,945 × 603,945
4. Step 4: Simplify right side
   279,859.50x = 364,749,563,025
5. Step 5: Solve for x
   x = 364,749,563,025/279,859.50
6. Step 6: Final answer
   x = 1,303,331.00