Finding the Third Proportional to 27,729.50 and 60,989.50

Step by Step Solution

1. Step 1: Write the proportion equation
   27,729.50 : 60,989.50 = 60,989.50 : x
2. Step 2: Convert to fraction form
   27,729.50/60,989.50 = 60,989.50/x
3. Step 3: Cross multiply
   27,729.50x = 60,989.50 × 60,989.50
4. Step 4: Simplify right side
   27,729.50x = 3,719,719,110.25
5. Step 5: Solve for x
   x = 3,719,719,110.25/27,729.50
6. Step 6: Final answer
   x = 134,143.03