Finding the Third Proportional to 3,897,520 and 8,503,292

Step by Step Solution

1. Step 1: Write the proportion equation
   3,897,520 : 8,503,292 = 8,503,292 : x
2. Step 2: Convert to fraction form
   3,897,520/8,503,292 = 8,503,292/x
3. Step 3: Cross multiply
   3,897,520x = 8,503,292 × 8,503,292
4. Step 4: Simplify right side
   3,897,520x = 72,305,974,837,264
5. Step 5: Solve for x
   x = 72,305,974,837,264/3,897,520
6. Step 6: Final answer
   x = 18,551,790.58