Finding the Third Proportional to 366,308 and 760,678

Step by Step Solution

1. Step 1: Write the proportion equation
   366,308 : 760,678 = 760,678 : x
2. Step 2: Convert to fraction form
   366,308/760,678 = 760,678/x
3. Step 3: Cross multiply
   366,308x = 760,678 × 760,678
4. Step 4: Simplify right side
   366,308x = 578,631,019,684
5. Step 5: Solve for x
   x = 578,631,019,684/366,308
6. Step 6: Final answer
   x = 1,579,629.76