Finding the Third Proportional to 30,330 and 65,814.75

Step by Step Solution

1. Step 1: Write the proportion equation
   30,330 : 65,814.75 = 65,814.75 : x
2. Step 2: Convert to fraction form
   30,330/65,814.75 = 65,814.75/x
3. Step 3: Cross multiply
   30,330x = 65,814.75 × 65,814.75
4. Step 4: Simplify right side
   30,330x = 4,331,581,317.56
5. Step 5: Solve for x
   x = 4,331,581,317.56/30,330
6. Step 6: Final answer
   x = 142,815.08