Finding the Third Proportional to 5,196,642 and 8,163,351

Step by Step Solution

1. Step 1: Write the proportion equation
   5,196,642 : 8,163,351 = 8,163,351 : x
2. Step 2: Convert to fraction form
   5,196,642/8,163,351 = 8,163,351/x
3. Step 3: Cross multiply
   5,196,642x = 8,163,351 × 8,163,351
4. Step 4: Simplify right side
   5,196,642x = 66,640,299,549,201
5. Step 5: Solve for x
   x = 66,640,299,549,201/5,196,642
6. Step 6: Final answer
   x = 12,823,723.39