Finding the Third Proportional to 37,489.50 and 76,815

Step by Step Solution

1. Step 1: Write the proportion equation
   37,489.50 : 76,815 = 76,815 : x
2. Step 2: Convert to fraction form
   37,489.50/76,815 = 76,815/x
3. Step 3: Cross multiply
   37,489.50x = 76,815 × 76,815
4. Step 4: Simplify right side
   37,489.50x = 5,900,544,225
5. Step 5: Solve for x
   x = 5,900,544,225/37,489.50
6. Step 6: Final answer
   x = 157,391.92