Finding the Third Proportional to 116,890 and 170,959.50

Step by Step Solution

1. Step 1: Write the proportion equation
   116,890 : 170,959.50 = 170,959.50 : x
2. Step 2: Convert to fraction form
   116,890/170,959.50 = 170,959.50/x
3. Step 3: Cross multiply
   116,890x = 170,959.50 × 170,959.50
4. Step 4: Simplify right side
   116,890x = 29,227,150,640.25
5. Step 5: Solve for x
   x = 29,227,150,640.25/116,890
6. Step 6: Final answer
   x = 250,039.79