Finding the Third Proportional to 173,159.50 and 265,980

Step by Step Solution

1. Step 1: Write the proportion equation
   173,159.50 : 265,980 = 265,980 : x
2. Step 2: Convert to fraction form
   173,159.50/265,980 = 265,980/x
3. Step 3: Cross multiply
   173,159.50x = 265,980 × 265,980
4. Step 4: Simplify right side
   173,159.50x = 70,745,360,400
5. Step 5: Solve for x
   x = 70,745,360,400/173,159.50
6. Step 6: Final answer
   x = 408,556.04