Finding the Third Proportional to 3,945,200 and 8,499,846

Step by Step Solution

1. Step 1: Write the proportion equation
   3,945,200 : 8,499,846 = 8,499,846 : x
2. Step 2: Convert to fraction form
   3,945,200/8,499,846 = 8,499,846/x
3. Step 3: Cross multiply
   3,945,200x = 8,499,846 × 8,499,846
4. Step 4: Simplify right side
   3,945,200x = 72,247,382,023,716
5. Step 5: Solve for x
   x = 72,247,382,023,716/3,945,200
6. Step 6: Final answer
   x = 18,312,729.91