Finding the Third Proportional to 2,451,699 and 5,386,971

Step by Step Solution

1. Step 1: Write the proportion equation
   2,451,699 : 5,386,971 = 5,386,971 : x
2. Step 2: Convert to fraction form
   2,451,699/5,386,971 = 5,386,971/x
3. Step 3: Cross multiply
   2,451,699x = 5,386,971 × 5,386,971
4. Step 4: Simplify right side
   2,451,699x = 29,019,456,554,841
5. Step 5: Solve for x
   x = 29,019,456,554,841/2,451,699
6. Step 6: Final answer
   x = 11,836,467.92