Finding the Third Proportional to 54,783.28 and 82,174.78

Step by Step Solution

1. Step 1: Write the proportion equation
   54,783.28 : 82,174.78 = 82,174.78 : x
2. Step 2: Convert to fraction form
   54,783.28/82,174.78 = 82,174.78/x
3. Step 3: Cross multiply
   54,783.28x = 82,174.78 × 82,174.78
4. Step 4: Simplify right side
   54,783.28x = 6,752,694,673.49
5. Step 5: Solve for x
   x = 6,752,694,673.49/54,783.28
6. Step 6: Final answer
   x = 123,261.96