Finding the Third Proportional to 59,191 and 91,999

Step by Step Solution

1. Step 1: Write the proportion equation
   59,191 : 91,999 = 91,999 : x
2. Step 2: Convert to fraction form
   59,191/91,999 = 91,999/x
3. Step 3: Cross multiply
   59,191x = 91,999 × 91,999
4. Step 4: Simplify right side
   59,191x = 8,463,816,001
5. Step 5: Solve for x
   x = 8,463,816,001/59,191
6. Step 6: Final answer
   x = 142,991.60