Finding the Third Proportional to 3,903,306 and 8,458,212

Step by Step Solution

1. Step 1: Write the proportion equation
   3,903,306 : 8,458,212 = 8,458,212 : x
2. Step 2: Convert to fraction form
   3,903,306/8,458,212 = 8,458,212/x
3. Step 3: Cross multiply
   3,903,306x = 8,458,212 × 8,458,212
4. Step 4: Simplify right side
   3,903,306x = 71,541,350,236,944
5. Step 5: Solve for x
   x = 71,541,350,236,944/3,903,306
6. Step 6: Final answer
   x = 18,328,399.12