Finding the Third Proportional to 7,401,978 and 16,505,919

Step by Step Solution

1. Step 1: Write the proportion equation
   7,401,978 : 16,505,919 = 16,505,919 : x
2. Step 2: Convert to fraction form
   7,401,978/16,505,919 = 16,505,919/x
3. Step 3: Cross multiply
   7,401,978x = 16,505,919 × 16,505,919
4. Step 4: Simplify right side
   7,401,978x = 272,445,362,034,561
5. Step 5: Solve for x
   x = 272,445,362,034,561/7,401,978
6. Step 6: Final answer
   x = 36,807,102.38