Finding the Third Proportional to 2,551,019 and 5,599,621

Step by Step Solution

1. Step 1: Write the proportion equation
   2,551,019 : 5,599,621 = 5,599,621 : x
2. Step 2: Convert to fraction form
   2,551,019/5,599,621 = 5,599,621/x
3. Step 3: Cross multiply
   2,551,019x = 5,599,621 × 5,599,621
4. Step 4: Simplify right side
   2,551,019x = 31,355,755,343,641
5. Step 5: Solve for x
   x = 31,355,755,343,641/2,551,019
6. Step 6: Final answer
   x = 12,291,462.88