Finding the Third Proportional to 170,959.50 and 372,019.50

Step by Step Solution

1. Step 1: Write the proportion equation
   170,959.50 : 372,019.50 = 372,019.50 : x
2. Step 2: Convert to fraction form
   170,959.50/372,019.50 = 372,019.50/x
3. Step 3: Cross multiply
   170,959.50x = 372,019.50 × 372,019.50
4. Step 4: Simplify right side
   170,959.50x = 138,398,508,380.25
5. Step 5: Solve for x
   x = 138,398,508,380.25/170,959.50
6. Step 6: Final answer
   x = 809,539.74