Finding the Third Proportional to 262,404 and 543,478.50

Step by Step Solution

1. Step 1: Write the proportion equation
   262,404 : 543,478.50 = 543,478.50 : x
2. Step 2: Convert to fraction form
   262,404/543,478.50 = 543,478.50/x
3. Step 3: Cross multiply
   262,404x = 543,478.50 × 543,478.50
4. Step 4: Simplify right side
   262,404x = 295,368,879,962.25
5. Step 5: Solve for x
   x = 295,368,879,962.25/262,404
6. Step 6: Final answer
   x = 1,125,626.44