Finding the Third Proportional to 21,044,116,338 and 45,792,845,434.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,044,116,338 : 45,792,845,434.50 = 45,792,845,434.50 : x
2. Step 2: Convert to fraction form
   21,044,116,338/45,792,845,434.50 = 45,792,845,434.50/x
3. Step 3: Cross multiply
   21,044,116,338x = 45,792,845,434.50 × 45,792,845,434.50
4. Step 4: Simplify right side
   21,044,116,338x = 2,096,984,692,988,007,415,808
5. Step 5: Solve for x
   x = 2,096,984,692,988,007,415,808/21,044,116,338
6. Step 6: Final answer
   x = 99,647,077,563.50