Finding the Third Proportional to 150,067.50 and 354,240

Step by Step Solution

1. Step 1: Write the proportion equation
   150,067.50 : 354,240 = 354,240 : x
2. Step 2: Convert to fraction form
   150,067.50/354,240 = 354,240/x
3. Step 3: Cross multiply
   150,067.50x = 354,240 × 354,240
4. Step 4: Simplify right side
   150,067.50x = 125,485,977,600
5. Step 5: Solve for x
   x = 125,485,977,600/150,067.50
6. Step 6: Final answer
   x = 836,196.90