Finding the Third Proportional to 405,417,317 and 885,147,800.50

Step by Step Solution

1. Step 1: Write the proportion equation
   405,417,317 : 885,147,800.50 = 885,147,800.50 : x
2. Step 2: Convert to fraction form
   405,417,317/885,147,800.50 = 885,147,800.50/x
3. Step 3: Cross multiply
   405,417,317x = 885,147,800.50 × 885,147,800.50
4. Step 4: Simplify right side
   405,417,317x = 783,486,628,729,987,840
5. Step 5: Solve for x
   x = 783,486,628,729,987,840/405,417,317
6. Step 6: Final answer
   x = 1,932,543,569.00