Finding the Third Proportional to 13,997,165 and 20,015,970

Step by Step Solution

1. Step 1: Write the proportion equation
   13,997,165 : 20,015,970 = 20,015,970 : x
2. Step 2: Convert to fraction form
   13,997,165/20,015,970 = 20,015,970/x
3. Step 3: Cross multiply
   13,997,165x = 20,015,970 × 20,015,970
4. Step 4: Simplify right side
   13,997,165x = 400,639,055,040,900
5. Step 5: Solve for x
   x = 400,639,055,040,900/13,997,165
6. Step 6: Final answer
   x = 28,622,871.49