Finding the Third Proportional to 21,181,934 and 31,744,443

Step by Step Solution

1. Step 1: Write the proportion equation
   21,181,934 : 31,744,443 = 31,744,443 : x
2. Step 2: Convert to fraction form
   21,181,934/31,744,443 = 31,744,443/x
3. Step 3: Cross multiply
   21,181,934x = 31,744,443 × 31,744,443
4. Step 4: Simplify right side
   21,181,934x = 1,007,709,661,380,249
5. Step 5: Solve for x
   x = 1,007,709,661,380,249/21,181,934
6. Step 6: Final answer
   x = 47,574,015.73