Finding the Third Proportional to 68,458.50 and 99,650.25

Step by Step Solution

1. Step 1: Write the proportion equation
   68,458.50 : 99,650.25 = 99,650.25 : x
2. Step 2: Convert to fraction form
   68,458.50/99,650.25 = 99,650.25/x
3. Step 3: Cross multiply
   68,458.50x = 99,650.25 × 99,650.25
4. Step 4: Simplify right side
   68,458.50x = 9,930,172,325.06
5. Step 5: Solve for x
   x = 9,930,172,325.06/68,458.50
6. Step 6: Final answer
   x = 145,053.90