Finding the Third Proportional to 42,147,658,765 and 91,012,923,371

Step by Step Solution

1. Step 1: Write the proportion equation
   42,147,658,765 : 91,012,923,371 = 91,012,923,371 : x
2. Step 2: Convert to fraction form
   42,147,658,765/91,012,923,371 = 91,012,923,371/x
3. Step 3: Cross multiply
   42,147,658,765x = 91,012,923,371 × 91,012,923,371
4. Step 4: Simplify right side
   42,147,658,765x = 8,283,352,220,535,517,872,128
5. Step 5: Solve for x
   x = 8,283,352,220,535,517,872,128/42,147,658,765
6. Step 6: Final answer
   x = 196,531,728,291.73