Finding the Third Proportional to 9,620,389 and 20,036,845

Step by Step Solution

1. Step 1: Write the proportion equation
   9,620,389 : 20,036,845 = 20,036,845 : x
2. Step 2: Convert to fraction form
   9,620,389/20,036,845 = 20,036,845/x
3. Step 3: Cross multiply
   9,620,389x = 20,036,845 × 20,036,845
4. Step 4: Simplify right side
   9,620,389x = 401,475,157,554,025
5. Step 5: Solve for x
   x = 401,475,157,554,025/9,620,389
6. Step 6: Final answer
   x = 41,731,696.87