Finding the Third Proportional to 276,666 and 604,308

Step by Step Solution

1. Step 1: Write the proportion equation
   276,666 : 604,308 = 604,308 : x
2. Step 2: Convert to fraction form
   276,666/604,308 = 604,308/x
3. Step 3: Cross multiply
   276,666x = 604,308 × 604,308
4. Step 4: Simplify right side
   276,666x = 365,188,158,864
5. Step 5: Solve for x
   x = 365,188,158,864/276,666
6. Step 6: Final answer
   x = 1,319,960.38