Finding the Third Proportional to 815,116,589 and 1,790,365,042

Step by Step Solution

1. Step 1: Write the proportion equation
   815,116,589 : 1,790,365,042 = 1,790,365,042 : x
2. Step 2: Convert to fraction form
   815,116,589/1,790,365,042 = 1,790,365,042/x
3. Step 3: Cross multiply
   815,116,589x = 1,790,365,042 × 1,790,365,042
4. Step 4: Simplify right side
   815,116,589x = 3,205,406,983,615,661,568
5. Step 5: Solve for x
   x = 3,205,406,983,615,661,568/815,116,589
6. Step 6: Final answer
   x = 3,932,452,150.86