Finding the Third Proportional to 4,916,916 and 7,713,216

Step by Step Solution

1. Step 1: Write the proportion equation
   4,916,916 : 7,713,216 = 7,713,216 : x
2. Step 2: Convert to fraction form
   4,916,916/7,713,216 = 7,713,216/x
3. Step 3: Cross multiply
   4,916,916x = 7,713,216 × 7,713,216
4. Step 4: Simplify right side
   4,916,916x = 59,493,701,062,656
5. Step 5: Solve for x
   x = 59,493,701,062,656/4,916,916
6. Step 6: Final answer
   x = 12,099,800.17