Finding the Third Proportional to 159,721.50 and 247,278

Step by Step Solution

1. Step 1: Write the proportion equation
   159,721.50 : 247,278 = 247,278 : x
2. Step 2: Convert to fraction form
   159,721.50/247,278 = 247,278/x
3. Step 3: Cross multiply
   159,721.50x = 247,278 × 247,278
4. Step 4: Simplify right side
   159,721.50x = 61,146,409,284
5. Step 5: Solve for x
   x = 61,146,409,284/159,721.50
6. Step 6: Final answer
   x = 382,831.42