Finding the Third Proportional to 19,404,644 and 39,379,484

Step by Step Solution

1. Step 1: Write the proportion equation
   19,404,644 : 39,379,484 = 39,379,484 : x
2. Step 2: Convert to fraction form
   19,404,644/39,379,484 = 39,379,484/x
3. Step 3: Cross multiply
   19,404,644x = 39,379,484 × 39,379,484
4. Step 4: Simplify right side
   19,404,644x = 1,550,743,760,106,256
5. Step 5: Solve for x
   x = 1,550,743,760,106,256/19,404,644
6. Step 6: Final answer
   x = 79,916,114.93