Finding the Third Proportional to 658,788 and 1,438,044

Step by Step Solution

1. Step 1: Write the proportion equation
   658,788 : 1,438,044 = 1,438,044 : x
2. Step 2: Convert to fraction form
   658,788/1,438,044 = 1,438,044/x
3. Step 3: Cross multiply
   658,788x = 1,438,044 × 1,438,044
4. Step 4: Simplify right side
   658,788x = 2,067,970,545,936
5. Step 5: Solve for x
   x = 2,067,970,545,936/658,788
6. Step 6: Final answer
   x = 3,139,053.15