Finding the Third Proportional to 21,044,116,323 and 45,792,845,406

Step by Step Solution

1. Step 1: Write the proportion equation
   21,044,116,323 : 45,792,845,406 = 45,792,845,406 : x
2. Step 2: Convert to fraction form
   21,044,116,323/45,792,845,406 = 45,792,845,406/x
3. Step 3: Cross multiply
   21,044,116,323x = 45,792,845,406 × 45,792,845,406
4. Step 4: Simplify right side
   21,044,116,323x = 2,096,984,690,377,815,228,416
5. Step 5: Solve for x
   x = 2,096,984,690,377,815,228,416/21,044,116,323
6. Step 6: Final answer
   x = 99,647,077,510.49