Finding the Third Proportional to 19,993,737,845 and 41,642,345,612

Step by Step Solution

1. Step 1: Write the proportion equation
   19,993,737,845 : 41,642,345,612 = 41,642,345,612 : x
2. Step 2: Convert to fraction form
   19,993,737,845/41,642,345,612 = 41,642,345,612/x
3. Step 3: Cross multiply
   19,993,737,845x = 41,642,345,612 × 41,642,345,612
4. Step 4: Simplify right side
   19,993,737,845x = 1,734,084,948,069,255,741,440
5. Step 5: Solve for x
   x = 1,734,084,948,069,255,741,440/19,993,737,845
6. Step 6: Final answer
   x = 86,731,403,678.12