Finding the Third Proportional to 658,782 and 1,438,038

Step by Step Solution

1. Step 1: Write the proportion equation
   658,782 : 1,438,038 = 1,438,038 : x
2. Step 2: Convert to fraction form
   658,782/1,438,038 = 1,438,038/x
3. Step 3: Cross multiply
   658,782x = 1,438,038 × 1,438,038
4. Step 4: Simplify right side
   658,782x = 2,067,953,289,444
5. Step 5: Solve for x
   x = 2,067,953,289,444/658,782
6. Step 6: Final answer
   x = 3,139,055.54