Finding the Third Proportional to 616,830 and 1,375,488

Step by Step Solution

1. Step 1: Write the proportion equation
   616,830 : 1,375,488 = 1,375,488 : x
2. Step 2: Convert to fraction form
   616,830/1,375,488 = 1,375,488/x
3. Step 3: Cross multiply
   616,830x = 1,375,488 × 1,375,488
4. Step 4: Simplify right side
   616,830x = 1,891,967,238,144
5. Step 5: Solve for x
   x = 1,891,967,238,144/616,830
6. Step 6: Final answer
   x = 3,067,242.58