Finding the Third Proportional to 4,531,968 and 9,863,168

Step by Step Solution

1. Step 1: Write the proportion equation
   4,531,968 : 9,863,168 = 9,863,168 : x
2. Step 2: Convert to fraction form
   4,531,968/9,863,168 = 9,863,168/x
3. Step 3: Cross multiply
   4,531,968x = 9,863,168 × 9,863,168
4. Step 4: Simplify right side
   4,531,968x = 97,282,082,996,224
5. Step 5: Solve for x
   x = 97,282,082,996,224/4,531,968
6. Step 6: Final answer
   x = 21,465,747.99