Finding the Third Proportional to 5,185,907 and 7,610,678

Step by Step Solution

1. Step 1: Write the proportion equation
   5,185,907 : 7,610,678 = 7,610,678 : x
2. Step 2: Convert to fraction form
   5,185,907/7,610,678 = 7,610,678/x
3. Step 3: Cross multiply
   5,185,907x = 7,610,678 × 7,610,678
4. Step 4: Simplify right side
   5,185,907x = 57,922,419,619,684
5. Step 5: Solve for x
   x = 57,922,419,619,684/5,185,907
6. Step 6: Final answer
   x = 11,169,197.52