Finding the Third Proportional to 59,419.50 and 122,990.25

Step by Step Solution

1. Step 1: Write the proportion equation
   59,419.50 : 122,990.25 = 122,990.25 : x
2. Step 2: Convert to fraction form
   59,419.50/122,990.25 = 122,990.25/x
3. Step 3: Cross multiply
   59,419.50x = 122,990.25 × 122,990.25
4. Step 4: Simplify right side
   59,419.50x = 15,126,601,595.06
5. Step 5: Solve for x
   x = 15,126,601,595.06/59,419.50
6. Step 6: Final answer
   x = 254,573.02