Finding the Third Proportional to 19,067,642 and 40,629,838

Step by Step Solution

1. Step 1: Write the proportion equation
   19,067,642 : 40,629,838 = 40,629,838 : x
2. Step 2: Convert to fraction form
   19,067,642/40,629,838 = 40,629,838/x
3. Step 3: Cross multiply
   19,067,642x = 40,629,838 × 40,629,838
4. Step 4: Simplify right side
   19,067,642x = 1,650,783,735,906,244
5. Step 5: Solve for x
   x = 1,650,783,735,906,244/19,067,642
6. Step 6: Final answer
   x = 86,575,137.92