Finding the Third Proportional to 5,091,020 and 10,978,696

Step by Step Solution

1. Step 1: Write the proportion equation
   5,091,020 : 10,978,696 = 10,978,696 : x
2. Step 2: Convert to fraction form
   5,091,020/10,978,696 = 10,978,696/x
3. Step 3: Cross multiply
   5,091,020x = 10,978,696 × 10,978,696
4. Step 4: Simplify right side
   5,091,020x = 120,531,765,860,416
5. Step 5: Solve for x
   x = 120,531,765,860,416/5,091,020
6. Step 6: Final answer
   x = 23,675,366.79