Finding the Third Proportional to 2,515,582 and 5,431,630

Step by Step Solution

1. Step 1: Write the proportion equation
   2,515,582 : 5,431,630 = 5,431,630 : x
2. Step 2: Convert to fraction form
   2,515,582/5,431,630 = 5,431,630/x
3. Step 3: Cross multiply
   2,515,582x = 5,431,630 × 5,431,630
4. Step 4: Simplify right side
   2,515,582x = 29,502,604,456,900
5. Step 5: Solve for x
   x = 29,502,604,456,900/2,515,582
6. Step 6: Final answer
   x = 11,727,943.85