Finding the Third Proportional to 79,708.50 and 174,240

Step by Step Solution

1. Step 1: Write the proportion equation
   79,708.50 : 174,240 = 174,240 : x
2. Step 2: Convert to fraction form
   79,708.50/174,240 = 174,240/x
3. Step 3: Cross multiply
   79,708.50x = 174,240 × 174,240
4. Step 4: Simplify right side
   79,708.50x = 30,359,577,600
5. Step 5: Solve for x
   x = 30,359,577,600/79,708.50
6. Step 6: Final answer
   x = 380,882.56