Finding the Third Proportional to 7,139,772 and 10,876,992

Step by Step Solution

1. Step 1: Write the proportion equation
   7,139,772 : 10,876,992 = 10,876,992 : x
2. Step 2: Convert to fraction form
   7,139,772/10,876,992 = 10,876,992/x
3. Step 3: Cross multiply
   7,139,772x = 10,876,992 × 10,876,992
4. Step 4: Simplify right side
   7,139,772x = 118,308,954,968,064
5. Step 5: Solve for x
   x = 118,308,954,968,064/7,139,772
6. Step 6: Final answer
   x = 16,570,410.79