Finding the Third Proportional to 505,449 and 760,225.50

Step by Step Solution

1. Step 1: Write the proportion equation
   505,449 : 760,225.50 = 760,225.50 : x
2. Step 2: Convert to fraction form
   505,449/760,225.50 = 760,225.50/x
3. Step 3: Cross multiply
   505,449x = 760,225.50 × 760,225.50
4. Step 4: Simplify right side
   505,449x = 577,942,810,850.25
5. Step 5: Solve for x
   x = 577,942,810,850.25/505,449
6. Step 6: Final answer
   x = 1,143,424.58