Finding the Third Proportional to 21,601,272 and 30,384,897

Step by Step Solution

1. Step 1: Write the proportion equation
   21,601,272 : 30,384,897 = 30,384,897 : x
2. Step 2: Convert to fraction form
   21,601,272/30,384,897 = 30,384,897/x
3. Step 3: Cross multiply
   21,601,272x = 30,384,897 × 30,384,897
4. Step 4: Simplify right side
   21,601,272x = 923,241,965,700,609
5. Step 5: Solve for x
   x = 923,241,965,700,609/21,601,272
6. Step 6: Final answer
   x = 42,740,166.68