Finding the Third Proportional to 67,858.50 and 99,760.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,858.50 : 99,760.50 = 99,760.50 : x
2. Step 2: Convert to fraction form
   67,858.50/99,760.50 = 99,760.50/x
3. Step 3: Cross multiply
   67,858.50x = 99,760.50 × 99,760.50
4. Step 4: Simplify right side
   67,858.50x = 9,952,157,360.25
5. Step 5: Solve for x
   x = 9,952,157,360.25/67,858.50
6. Step 6: Final answer
   x = 146,660.44