Finding the Third Proportional to 279,871.50 and 603,969

Step by Step Solution

1. Step 1: Write the proportion equation
   279,871.50 : 603,969 = 603,969 : x
2. Step 2: Convert to fraction form
   279,871.50/603,969 = 603,969/x
3. Step 3: Cross multiply
   279,871.50x = 603,969 × 603,969
4. Step 4: Simplify right side
   279,871.50x = 364,778,552,961
5. Step 5: Solve for x
   x = 364,778,552,961/279,871.50
6. Step 6: Final answer
   x = 1,303,378.70