Finding the Third Proportional to 2,530,191 and 5,509,629

Step by Step Solution

1. Step 1: Write the proportion equation
   2,530,191 : 5,509,629 = 5,509,629 : x
2. Step 2: Convert to fraction form
   2,530,191/5,509,629 = 5,509,629/x
3. Step 3: Cross multiply
   2,530,191x = 5,509,629 × 5,509,629
4. Step 4: Simplify right side
   2,530,191x = 30,356,011,717,641
5. Step 5: Solve for x
   x = 30,356,011,717,641/2,530,191
6. Step 6: Final answer
   x = 11,997,517.86