Finding the Third Proportional to 253,976.50 and 542,945

Step by Step Solution

1. Step 1: Write the proportion equation
   253,976.50 : 542,945 = 542,945 : x
2. Step 2: Convert to fraction form
   253,976.50/542,945 = 542,945/x
3. Step 3: Cross multiply
   253,976.50x = 542,945 × 542,945
4. Step 4: Simplify right side
   253,976.50x = 294,789,273,025
5. Step 5: Solve for x
   x = 294,789,273,025/253,976.50
6. Step 6: Final answer
   x = 1,160,695.08