Finding the Third Proportional to 2,318,809 and 4,980,978

Step by Step Solution

1. Step 1: Write the proportion equation
   2,318,809 : 4,980,978 = 4,980,978 : x
2. Step 2: Convert to fraction form
   2,318,809/4,980,978 = 4,980,978/x
3. Step 3: Cross multiply
   2,318,809x = 4,980,978 × 4,980,978
4. Step 4: Simplify right side
   2,318,809x = 24,810,141,836,484
5. Step 5: Solve for x
   x = 24,810,141,836,484/2,318,809
6. Step 6: Final answer
   x = 10,699,519.38