Finding the Third Proportional to 658,789 and 1,438,051

Step by Step Solution

1. Step 1: Write the proportion equation
   658,789 : 1,438,051 = 1,438,051 : x
2. Step 2: Convert to fraction form
   658,789/1,438,051 = 1,438,051/x
3. Step 3: Cross multiply
   658,789x = 1,438,051 × 1,438,051
4. Step 4: Simplify right side
   658,789x = 2,067,990,678,601
5. Step 5: Solve for x
   x = 2,067,990,678,601/658,789
6. Step 6: Final answer
   x = 3,139,078.94