Finding the Third Proportional to 3,312,019 and 7,131,458

Step by Step Solution

1. Step 1: Write the proportion equation
   3,312,019 : 7,131,458 = 7,131,458 : x
2. Step 2: Convert to fraction form
   3,312,019/7,131,458 = 7,131,458/x
3. Step 3: Cross multiply
   3,312,019x = 7,131,458 × 7,131,458
4. Step 4: Simplify right side
   3,312,019x = 50,857,693,205,764
5. Step 5: Solve for x
   x = 50,857,693,205,764/3,312,019
6. Step 6: Final answer
   x = 15,355,495.61