Finding the Third Proportional to 3,897,494 and 8,503,240

Step by Step Solution

1. Step 1: Write the proportion equation
   3,897,494 : 8,503,240 = 8,503,240 : x
2. Step 2: Convert to fraction form
   3,897,494/8,503,240 = 8,503,240/x
3. Step 3: Cross multiply
   3,897,494x = 8,503,240 × 8,503,240
4. Step 4: Simplify right side
   3,897,494x = 72,305,090,497,600
5. Step 5: Solve for x
   x = 72,305,090,497,600/3,897,494
6. Step 6: Final answer
   x = 18,551,687.44