Finding the Third Proportional to 3,993,484 and 8,615,184

Step by Step Solution

1. Step 1: Write the proportion equation
   3,993,484 : 8,615,184 = 8,615,184 : x
2. Step 2: Convert to fraction form
   3,993,484/8,615,184 = 8,615,184/x
3. Step 3: Cross multiply
   3,993,484x = 8,615,184 × 8,615,184
4. Step 4: Simplify right side
   3,993,484x = 74,221,395,353,856
5. Step 5: Solve for x
   x = 74,221,395,353,856/3,993,484
6. Step 6: Final answer
   x = 18,585,624.82