Finding the Third Proportional to 109,159.50 and 173,580

Step by Step Solution

1. Step 1: Write the proportion equation
   109,159.50 : 173,580 = 173,580 : x
2. Step 2: Convert to fraction form
   109,159.50/173,580 = 173,580/x
3. Step 3: Cross multiply
   109,159.50x = 173,580 × 173,580
4. Step 4: Simplify right side
   109,159.50x = 30,130,016,400
5. Step 5: Solve for x
   x = 30,130,016,400/109,159.50
6. Step 6: Final answer
   x = 276,018.27