Finding the Third Proportional to 3,920,902 and 8,493,183

Step by Step Solution

1. Step 1: Write the proportion equation
   3,920,902 : 8,493,183 = 8,493,183 : x
2. Step 2: Convert to fraction form
   3,920,902/8,493,183 = 8,493,183/x
3. Step 3: Cross multiply
   3,920,902x = 8,493,183 × 8,493,183
4. Step 4: Simplify right side
   3,920,902x = 72,134,157,471,489
5. Step 5: Solve for x
   x = 72,134,157,471,489/3,920,902
6. Step 6: Final answer
   x = 18,397,337.52