Finding the Third Proportional to 147,434 and 315,904

Step by Step Solution

1. Step 1: Write the proportion equation
   147,434 : 315,904 = 315,904 : x
2. Step 2: Convert to fraction form
   147,434/315,904 = 315,904/x
3. Step 3: Cross multiply
   147,434x = 315,904 × 315,904
4. Step 4: Simplify right side
   147,434x = 99,795,337,216
5. Step 5: Solve for x
   x = 99,795,337,216/147,434
6. Step 6: Final answer
   x = 676,881.43