Finding the Third Proportional to 21,868,992 and 34,756,560

Step by Step Solution

1. Step 1: Write the proportion equation
   21,868,992 : 34,756,560 = 34,756,560 : x
2. Step 2: Convert to fraction form
   21,868,992/34,756,560 = 34,756,560/x
3. Step 3: Cross multiply
   21,868,992x = 34,756,560 × 34,756,560
4. Step 4: Simplify right side
   21,868,992x = 1,208,018,463,033,600
5. Step 5: Solve for x
   x = 1,208,018,463,033,600/21,868,992
6. Step 6: Final answer
   x = 55,238,872.60