Finding the Third Proportional to 3,897,474 and 8,503,212

Step by Step Solution

1. Step 1: Write the proportion equation
   3,897,474 : 8,503,212 = 8,503,212 : x
2. Step 2: Convert to fraction form
   3,897,474/8,503,212 = 8,503,212/x
3. Step 3: Cross multiply
   3,897,474x = 8,503,212 × 8,503,212
4. Step 4: Simplify right side
   3,897,474x = 72,304,614,316,944
5. Step 5: Solve for x
   x = 72,304,614,316,944/3,897,474
6. Step 6: Final answer
   x = 18,551,660.46