Finding the Third Proportional to 30,215.25 and 65,234.75

Step by Step Solution

1. Step 1: Write the proportion equation
   30,215.25 : 65,234.75 = 65,234.75 : x
2. Step 2: Convert to fraction form
   30,215.25/65,234.75 = 65,234.75/x
3. Step 3: Cross multiply
   30,215.25x = 65,234.75 × 65,234.75
4. Step 4: Simplify right side
   30,215.25x = 4,255,572,607.56
5. Step 5: Solve for x
   x = 4,255,572,607.56/30,215.25
6. Step 6: Final answer
   x = 140,841.88