Finding the Third Proportional to 322,993.50 and 495,789

Step by Step Solution

1. Step 1: Write the proportion equation
   322,993.50 : 495,789 = 495,789 : x
2. Step 2: Convert to fraction form
   322,993.50/495,789 = 495,789/x
3. Step 3: Cross multiply
   322,993.50x = 495,789 × 495,789
4. Step 4: Simplify right side
   322,993.50x = 245,806,732,521
5. Step 5: Solve for x
   x = 245,806,732,521/322,993.50
6. Step 6: Final answer
   x = 761,026.87