Finding the Third Proportional to 353,512 and 548,250

Step by Step Solution

1. Step 1: Write the proportion equation
   353,512 : 548,250 = 548,250 : x
2. Step 2: Convert to fraction form
   353,512/548,250 = 548,250/x
3. Step 3: Cross multiply
   353,512x = 548,250 × 548,250
4. Step 4: Simplify right side
   353,512x = 300,578,062,500
5. Step 5: Solve for x
   x = 300,578,062,500/353,512
6. Step 6: Final answer
   x = 850,262.69