Finding the Third Proportional to 5,177,969 and 7,766,954

Step by Step Solution

1. Step 1: Write the proportion equation
   5,177,969 : 7,766,954 = 7,766,954 : x
2. Step 2: Convert to fraction form
   5,177,969/7,766,954 = 7,766,954/x
3. Step 3: Cross multiply
   5,177,969x = 7,766,954 × 7,766,954
4. Step 4: Simplify right side
   5,177,969x = 60,325,574,438,116
5. Step 5: Solve for x
   x = 60,325,574,438,116/5,177,969
6. Step 6: Final answer
   x = 11,650,431.75