Finding the Third Proportional to 308,954 and 676,960

Step by Step Solution

1. Step 1: Write the proportion equation
   308,954 : 676,960 = 676,960 : x
2. Step 2: Convert to fraction form
   308,954/676,960 = 676,960/x
3. Step 3: Cross multiply
   308,954x = 676,960 × 676,960
4. Step 4: Simplify right side
   308,954x = 458,274,841,600
5. Step 5: Solve for x
   x = 458,274,841,600/308,954
6. Step 6: Final answer
   x = 1,483,310.92