Finding the Third Proportional to 5,090,509 and 10,978,049

Step by Step Solution

1. Step 1: Write the proportion equation
   5,090,509 : 10,978,049 = 10,978,049 : x
2. Step 2: Convert to fraction form
   5,090,509/10,978,049 = 10,978,049/x
3. Step 3: Cross multiply
   5,090,509x = 10,978,049 × 10,978,049
4. Step 4: Simplify right side
   5,090,509x = 120,517,559,846,401
5. Step 5: Solve for x
   x = 120,517,559,846,401/5,090,509
6. Step 6: Final answer
   x = 23,674,952.71