Finding the Third Proportional to 126,342.50 and 274,957

Step by Step Solution

1. Step 1: Write the proportion equation
   126,342.50 : 274,957 = 274,957 : x
2. Step 2: Convert to fraction form
   126,342.50/274,957 = 274,957/x
3. Step 3: Cross multiply
   126,342.50x = 274,957 × 274,957
4. Step 4: Simplify right side
   126,342.50x = 75,601,351,849
5. Step 5: Solve for x
   x = 75,601,351,849/126,342.50
6. Step 6: Final answer
   x = 598,384.17