Finding the Third Proportional to 3,947,127 and 8,503,314

Step by Step Solution

1. Step 1: Write the proportion equation
   3,947,127 : 8,503,314 = 8,503,314 : x
2. Step 2: Convert to fraction form
   3,947,127/8,503,314 = 8,503,314/x
3. Step 3: Cross multiply
   3,947,127x = 8,503,314 × 8,503,314
4. Step 4: Simplify right side
   3,947,127x = 72,306,348,982,596
5. Step 5: Solve for x
   x = 72,306,348,982,596/3,947,127
6. Step 6: Final answer
   x = 18,318,728.78