Finding the Third Proportional to 294,144 and 622,956

Step by Step Solution

1. Step 1: Write the proportion equation
   294,144 : 622,956 = 622,956 : x
2. Step 2: Convert to fraction form
   294,144/622,956 = 622,956/x
3. Step 3: Cross multiply
   294,144x = 622,956 × 622,956
4. Step 4: Simplify right side
   294,144x = 388,074,177,936
5. Step 5: Solve for x
   x = 388,074,177,936/294,144
6. Step 6: Final answer
   x = 1,319,333.99