Finding the Third Proportional to 253,921.50 and 542,826

Step by Step Solution

1. Step 1: Write the proportion equation
   253,921.50 : 542,826 = 542,826 : x
2. Step 2: Convert to fraction form
   253,921.50/542,826 = 542,826/x
3. Step 3: Cross multiply
   253,921.50x = 542,826 × 542,826
4. Step 4: Simplify right side
   253,921.50x = 294,660,066,276
5. Step 5: Solve for x
   x = 294,660,066,276/253,921.50
6. Step 6: Final answer
   x = 1,160,437.64