Finding the Third Proportional to 3,897,512 and 8,503,272

Step by Step Solution

1. Step 1: Write the proportion equation
   3,897,512 : 8,503,272 = 8,503,272 : x
2. Step 2: Convert to fraction form
   3,897,512/8,503,272 = 8,503,272/x
3. Step 3: Cross multiply
   3,897,512x = 8,503,272 × 8,503,272
4. Step 4: Simplify right side
   3,897,512x = 72,305,634,705,984
5. Step 5: Solve for x
   x = 72,305,634,705,984/3,897,512
6. Step 6: Final answer
   x = 18,551,741.39