Finding the Third Proportional to 19,993,737,858 and 41,642,345,637

Step by Step Solution

1. Step 1: Write the proportion equation
   19,993,737,858 : 41,642,345,637 = 41,642,345,637 : x
2. Step 2: Convert to fraction form
   19,993,737,858/41,642,345,637 = 41,642,345,637/x
3. Step 3: Cross multiply
   19,993,737,858x = 41,642,345,637 × 41,642,345,637
4. Step 4: Simplify right side
   19,993,737,858x = 1,734,084,950,151,372,996,608
5. Step 5: Solve for x
   x = 1,734,084,950,151,372,996,608/19,993,737,858
6. Step 6: Final answer
   x = 86,731,403,725.87