Finding the Third Proportional to 67,150.50 and 99,789.75

Step by Step Solution

1. Step 1: Write the proportion equation
   67,150.50 : 99,789.75 = 99,789.75 : x
2. Step 2: Convert to fraction form
   67,150.50/99,789.75 = 99,789.75/x
3. Step 3: Cross multiply
   67,150.50x = 99,789.75 × 99,789.75
4. Step 4: Simplify right side
   67,150.50x = 9,957,994,205.06
5. Step 5: Solve for x
   x = 9,957,994,205.06/67,150.50
6. Step 6: Final answer
   x = 148,293.67