Finding the Third Proportional to 287,118 and 588,564

Step by Step Solution

1. Step 1: Write the proportion equation
   287,118 : 588,564 = 588,564 : x
2. Step 2: Convert to fraction form
   287,118/588,564 = 588,564/x
3. Step 3: Cross multiply
   287,118x = 588,564 × 588,564
4. Step 4: Simplify right side
   287,118x = 346,407,582,096
5. Step 5: Solve for x
   x = 346,407,582,096/287,118
6. Step 6: Final answer
   x = 1,206,499.01