Finding the Third Proportional to 587,984 and 1,288,000

Step by Step Solution

1. Step 1: Write the proportion equation
   587,984 : 1,288,000 = 1,288,000 : x
2. Step 2: Convert to fraction form
   587,984/1,288,000 = 1,288,000/x
3. Step 3: Cross multiply
   587,984x = 1,288,000 × 1,288,000
4. Step 4: Simplify right side
   587,984x = 1,658,944,000,000
5. Step 5: Solve for x
   x = 1,658,944,000,000/587,984
6. Step 6: Final answer
   x = 2,821,410.11