Finding the Third Proportional to 55,474 and 83,919

Step by Step Solution

1. Step 1: Write the proportion equation
   55,474 : 83,919 = 83,919 : x
2. Step 2: Convert to fraction form
   55,474/83,919 = 83,919/x
3. Step 3: Cross multiply
   55,474x = 83,919 × 83,919
4. Step 4: Simplify right side
   55,474x = 7,042,398,561
5. Step 5: Solve for x
   x = 7,042,398,561/55,474
6. Step 6: Final answer
   x = 126,949.54