Finding the Third Proportional to 288,452 and 610,150

Step by Step Solution

1. Step 1: Write the proportion equation
   288,452 : 610,150 = 610,150 : x
2. Step 2: Convert to fraction form
   288,452/610,150 = 610,150/x
3. Step 3: Cross multiply
   288,452x = 610,150 × 610,150
4. Step 4: Simplify right side
   288,452x = 372,283,022,500
5. Step 5: Solve for x
   x = 372,283,022,500/288,452
6. Step 6: Final answer
   x = 1,290,623.82