Finding the Third Proportional to 42,915,999 and 91,968,234

Step by Step Solution

1. Step 1: Write the proportion equation
   42,915,999 : 91,968,234 = 91,968,234 : x
2. Step 2: Convert to fraction form
   42,915,999/91,968,234 = 91,968,234/x
3. Step 3: Cross multiply
   42,915,999x = 91,968,234 × 91,968,234
4. Step 4: Simplify right side
   42,915,999x = 8,458,156,065,078,756
5. Step 5: Solve for x
   x = 8,458,156,065,078,756/42,915,999
6. Step 6: Final answer
   x = 197,086,314.25