Finding the Third Proportional to 360,859.50 and 504,499.50

Step by Step Solution

1. Step 1: Write the proportion equation
   360,859.50 : 504,499.50 = 504,499.50 : x
2. Step 2: Convert to fraction form
   360,859.50/504,499.50 = 504,499.50/x
3. Step 3: Cross multiply
   360,859.50x = 504,499.50 × 504,499.50
4. Step 4: Simplify right side
   360,859.50x = 254,519,745,500.25
5. Step 5: Solve for x
   x = 254,519,745,500.25/360,859.50
6. Step 6: Final answer
   x = 705,315.35