Finding the Third Proportional to 21,384,778 and 30,897,326

Step by Step Solution

1. Step 1: Write the proportion equation
   21,384,778 : 30,897,326 = 30,897,326 : x
2. Step 2: Convert to fraction form
   21,384,778/30,897,326 = 30,897,326/x
3. Step 3: Cross multiply
   21,384,778x = 30,897,326 × 30,897,326
4. Step 4: Simplify right side
   21,384,778x = 954,644,753,950,276
5. Step 5: Solve for x
   x = 954,644,753,950,276/21,384,778
6. Step 6: Final answer
   x = 44,641,321.69