Finding the Third Proportional to 10,111,986 and 21,840,063

Step by Step Solution

1. Step 1: Write the proportion equation
   10,111,986 : 21,840,063 = 21,840,063 : x
2. Step 2: Convert to fraction form
   10,111,986/21,840,063 = 21,840,063/x
3. Step 3: Cross multiply
   10,111,986x = 21,840,063 × 21,840,063
4. Step 4: Simplify right side
   10,111,986x = 476,988,351,843,969
5. Step 5: Solve for x
   x = 476,988,351,843,969/10,111,986
6. Step 6: Final answer
   x = 47,170,590.61