Finding the Third Proportional to 276,331.50 and 495,801

Step by Step Solution

1. Step 1: Write the proportion equation
   276,331.50 : 495,801 = 495,801 : x
2. Step 2: Convert to fraction form
   276,331.50/495,801 = 495,801/x
3. Step 3: Cross multiply
   276,331.50x = 495,801 × 495,801
4. Step 4: Simplify right side
   276,331.50x = 245,818,631,601
5. Step 5: Solve for x
   x = 245,818,631,601/276,331.50
6. Step 6: Final answer
   x = 889,578.75