Finding the Third Proportional to 280,303.50 and 440,544

Step by Step Solution

1. Step 1: Write the proportion equation
   280,303.50 : 440,544 = 440,544 : x
2. Step 2: Convert to fraction form
   280,303.50/440,544 = 440,544/x
3. Step 3: Cross multiply
   280,303.50x = 440,544 × 440,544
4. Step 4: Simplify right side
   280,303.50x = 194,079,015,936
5. Step 5: Solve for x
   x = 194,079,015,936/280,303.50
6. Step 6: Final answer
   x = 692,388.84