Finding the Third Proportional to 3,897,486 and 8,503,224

Step by Step Solution

1. Step 1: Write the proportion equation
   3,897,486 : 8,503,224 = 8,503,224 : x
2. Step 2: Convert to fraction form
   3,897,486/8,503,224 = 8,503,224/x
3. Step 3: Cross multiply
   3,897,486x = 8,503,224 × 8,503,224
4. Step 4: Simplify right side
   3,897,486x = 72,304,818,394,176
5. Step 5: Solve for x
   x = 72,304,818,394,176/3,897,486
6. Step 6: Final answer
   x = 18,551,655.71