Finding the Third Proportional to 9,581,642,485 and 20,850,493,514

Step by Step Solution

1. Step 1: Write the proportion equation
   9,581,642,485 : 20,850,493,514 = 20,850,493,514 : x
2. Step 2: Convert to fraction form
   9,581,642,485/20,850,493,514 = 20,850,493,514/x
3. Step 3: Cross multiply
   9,581,642,485x = 20,850,493,514 × 20,850,493,514
4. Step 4: Simplify right side
   9,581,642,485x = 434,743,079,777,356,087,296
5. Step 5: Solve for x
   x = 434,743,079,777,356,087,296/9,581,642,485
6. Step 6: Final answer
   x = 45,372,500,639.42