Finding the Third Proportional to 2,515,584 and 5,431,634

Step by Step Solution

1. Step 1: Write the proportion equation
   2,515,584 : 5,431,634 = 5,431,634 : x
2. Step 2: Convert to fraction form
   2,515,584/5,431,634 = 5,431,634/x
3. Step 3: Cross multiply
   2,515,584x = 5,431,634 × 5,431,634
4. Step 4: Simplify right side
   2,515,584x = 29,502,647,909,956
5. Step 5: Solve for x
   x = 29,502,647,909,956/2,515,584
6. Step 6: Final answer
   x = 11,727,951.80