Finding the Third Proportional to 3,924,369 and 8,449,758

Step by Step Solution

1. Step 1: Write the proportion equation
   3,924,369 : 8,449,758 = 8,449,758 : x
2. Step 2: Convert to fraction form
   3,924,369/8,449,758 = 8,449,758/x
3. Step 3: Cross multiply
   3,924,369x = 8,449,758 × 8,449,758
4. Step 4: Simplify right side
   3,924,369x = 71,398,410,258,564
5. Step 5: Solve for x
   x = 71,398,410,258,564/3,924,369
6. Step 6: Final answer
   x = 18,193,602.66