Finding the Third Proportional to 3,396,872 and 5,213,244

Step by Step Solution

1. Step 1: Write the proportion equation
   3,396,872 : 5,213,244 = 5,213,244 : x
2. Step 2: Convert to fraction form
   3,396,872/5,213,244 = 5,213,244/x
3. Step 3: Cross multiply
   3,396,872x = 5,213,244 × 5,213,244
4. Step 4: Simplify right side
   3,396,872x = 27,177,913,003,536
5. Step 5: Solve for x
   x = 27,177,913,003,536/3,396,872
6. Step 6: Final answer
   x = 8,000,864.62