Finding the Third Proportional to 428,948 and 928,504

Step by Step Solution

1. Step 1: Write the proportion equation
   428,948 : 928,504 = 928,504 : x
2. Step 2: Convert to fraction form
   428,948/928,504 = 928,504/x
3. Step 3: Cross multiply
   428,948x = 928,504 × 928,504
4. Step 4: Simplify right side
   428,948x = 862,119,678,016
5. Step 5: Solve for x
   x = 862,119,678,016/428,948
6. Step 6: Final answer
   x = 2,009,846.60