Finding the Third Proportional to 21,987,876 and 34,238,190

Step by Step Solution

1. Step 1: Write the proportion equation
   21,987,876 : 34,238,190 = 34,238,190 : x
2. Step 2: Convert to fraction form
   21,987,876/34,238,190 = 34,238,190/x
3. Step 3: Cross multiply
   21,987,876x = 34,238,190 × 34,238,190
4. Step 4: Simplify right side
   21,987,876x = 1,172,253,654,476,100
5. Step 5: Solve for x
   x = 1,172,253,654,476,100/21,987,876
6. Step 6: Final answer
   x = 53,313,637.68