Finding the Third Proportional to 2,530,186 and 5,509,619

Step by Step Solution

1. Step 1: Write the proportion equation
   2,530,186 : 5,509,619 = 5,509,619 : x
2. Step 2: Convert to fraction form
   2,530,186/5,509,619 = 5,509,619/x
3. Step 3: Cross multiply
   2,530,186x = 5,509,619 × 5,509,619
4. Step 4: Simplify right side
   2,530,186x = 30,355,901,525,161
5. Step 5: Solve for x
   x = 30,355,901,525,161/2,530,186
6. Step 6: Final answer
   x = 11,997,498.02