Finding the Third Proportional to 30,279 and 62,716.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,279 : 62,716.50 = 62,716.50 : x
2. Step 2: Convert to fraction form
   30,279/62,716.50 = 62,716.50/x
3. Step 3: Cross multiply
   30,279x = 62,716.50 × 62,716.50
4. Step 4: Simplify right side
   30,279x = 3,933,359,372.25
5. Step 5: Solve for x
   x = 3,933,359,372.25/30,279
6. Step 6: Final answer
   x = 129,903.87