Finding the Third Proportional to 91,759.50 and 141,817.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,759.50 : 141,817.50 = 141,817.50 : x
2. Step 2: Convert to fraction form
   91,759.50/141,817.50 = 141,817.50/x
3. Step 3: Cross multiply
   91,759.50x = 141,817.50 × 141,817.50
4. Step 4: Simplify right side
   91,759.50x = 20,112,203,306.25
5. Step 5: Solve for x
   x = 20,112,203,306.25/91,759.50
6. Step 6: Final answer
   x = 219,183.88