Finding the Third Proportional to 3,812,486 and 8,392,610

Step by Step Solution

1. Step 1: Write the proportion equation
   3,812,486 : 8,392,610 = 8,392,610 : x
2. Step 2: Convert to fraction form
   3,812,486/8,392,610 = 8,392,610/x
3. Step 3: Cross multiply
   3,812,486x = 8,392,610 × 8,392,610
4. Step 4: Simplify right side
   3,812,486x = 70,435,902,612,100
5. Step 5: Solve for x
   x = 70,435,902,612,100/3,812,486
6. Step 6: Final answer
   x = 18,475,058.69