Finding the Third Proportional to 8,384,268 and 12,618,384

Step by Step Solution

1. Step 1: Write the proportion equation
   8,384,268 : 12,618,384 = 12,618,384 : x
2. Step 2: Convert to fraction form
   8,384,268/12,618,384 = 12,618,384/x
3. Step 3: Cross multiply
   8,384,268x = 12,618,384 × 12,618,384
4. Step 4: Simplify right side
   8,384,268x = 159,223,614,771,456
5. Step 5: Solve for x
   x = 159,223,614,771,456/8,384,268
6. Step 6: Final answer
   x = 18,990,759.21