Finding the Third Proportional to 150,284 and 355,404

Step by Step Solution

1. Step 1: Write the proportion equation
   150,284 : 355,404 = 355,404 : x
2. Step 2: Convert to fraction form
   150,284/355,404 = 355,404/x
3. Step 3: Cross multiply
   150,284x = 355,404 × 355,404
4. Step 4: Simplify right side
   150,284x = 126,312,003,216
5. Step 5: Solve for x
   x = 126,312,003,216/150,284
6. Step 6: Final answer
   x = 840,488.70