Finding the Third Proportional to 3,644,478 and 7,975,309

Step by Step Solution

1. Step 1: Write the proportion equation
   3,644,478 : 7,975,309 = 7,975,309 : x
2. Step 2: Convert to fraction form
   3,644,478/7,975,309 = 7,975,309/x
3. Step 3: Cross multiply
   3,644,478x = 7,975,309 × 7,975,309
4. Step 4: Simplify right side
   3,644,478x = 63,605,553,645,481
5. Step 5: Solve for x
   x = 63,605,553,645,481/3,644,478
6. Step 6: Final answer
   x = 17,452,582.69