Finding the Third Proportional to 5,090,936 and 10,978,496

Step by Step Solution

1. Step 1: Write the proportion equation
   5,090,936 : 10,978,496 = 10,978,496 : x
2. Step 2: Convert to fraction form
   5,090,936/10,978,496 = 10,978,496/x
3. Step 3: Cross multiply
   5,090,936x = 10,978,496 × 10,978,496
4. Step 4: Simplify right side
   5,090,936x = 120,527,374,422,016
5. Step 5: Solve for x
   x = 120,527,374,422,016/5,090,936
6. Step 6: Final answer
   x = 23,674,894.84