Finding the Third Proportional to 160,789.50 and 359,640

Step by Step Solution

1. Step 1: Write the proportion equation
   160,789.50 : 359,640 = 359,640 : x
2. Step 2: Convert to fraction form
   160,789.50/359,640 = 359,640/x
3. Step 3: Cross multiply
   160,789.50x = 359,640 × 359,640
4. Step 4: Simplify right side
   160,789.50x = 129,340,929,600
5. Step 5: Solve for x
   x = 129,340,929,600/160,789.50
6. Step 6: Final answer
   x = 804,411.54