Finding the Third Proportional to 3,897,560 and 8,503,384

Step by Step Solution

1. Step 1: Write the proportion equation
   3,897,560 : 8,503,384 = 8,503,384 : x
2. Step 2: Convert to fraction form
   3,897,560/8,503,384 = 8,503,384/x
3. Step 3: Cross multiply
   3,897,560x = 8,503,384 × 8,503,384
4. Step 4: Simplify right side
   3,897,560x = 72,307,539,451,456
5. Step 5: Solve for x
   x = 72,307,539,451,456/3,897,560
6. Step 6: Final answer
   x = 18,552,001.62