Finding the Third Proportional to 485,878 and 1,002,880

Step by Step Solution

1. Step 1: Write the proportion equation
   485,878 : 1,002,880 = 1,002,880 : x
2. Step 2: Convert to fraction form
   485,878/1,002,880 = 1,002,880/x
3. Step 3: Cross multiply
   485,878x = 1,002,880 × 1,002,880
4. Step 4: Simplify right side
   485,878x = 1,005,768,294,400
5. Step 5: Solve for x
   x = 1,005,768,294,400/485,878
6. Step 6: Final answer
   x = 2,070,001.72