Finding the Third Proportional to 5,189,842 and 8,264,443

Step by Step Solution

1. Step 1: Write the proportion equation
   5,189,842 : 8,264,443 = 8,264,443 : x
2. Step 2: Convert to fraction form
   5,189,842/8,264,443 = 8,264,443/x
3. Step 3: Cross multiply
   5,189,842x = 8,264,443 × 8,264,443
4. Step 4: Simplify right side
   5,189,842x = 68,301,018,100,249
5. Step 5: Solve for x
   x = 68,301,018,100,249/5,189,842
6. Step 6: Final answer
   x = 13,160,519.74