Finding the Third Proportional to 2,515,588 and 5,431,637

Step by Step Solution

1. Step 1: Write the proportion equation
   2,515,588 : 5,431,637 = 5,431,637 : x
2. Step 2: Convert to fraction form
   2,515,588/5,431,637 = 5,431,637/x
3. Step 3: Cross multiply
   2,515,588x = 5,431,637 × 5,431,637
4. Step 4: Simplify right side
   2,515,588x = 29,502,680,499,769
5. Step 5: Solve for x
   x = 29,502,680,499,769/2,515,588
6. Step 6: Final answer
   x = 11,727,946.11