Finding the Third Proportional to 9,964,042 and 21,456,268

Step by Step Solution

1. Step 1: Write the proportion equation
   9,964,042 : 21,456,268 = 21,456,268 : x
2. Step 2: Convert to fraction form
   9,964,042/21,456,268 = 21,456,268/x
3. Step 3: Cross multiply
   9,964,042x = 21,456,268 × 21,456,268
4. Step 4: Simplify right side
   9,964,042x = 460,371,436,487,824
5. Step 5: Solve for x
   x = 460,371,436,487,824/9,964,042
6. Step 6: Final answer
   x = 46,203,281.41