Finding the Third Proportional to 30,815.44 and 67,181.91

Step by Step Solution

1. Step 1: Write the proportion equation
   30,815.44 : 67,181.91 = 67,181.91 : x
2. Step 2: Convert to fraction form
   30,815.44/67,181.91 = 67,181.91/x
3. Step 3: Cross multiply
   30,815.44x = 67,181.91 × 67,181.91
4. Step 4: Simplify right side
   30,815.44x = 4,513,408,527.38
5. Step 5: Solve for x
   x = 4,513,408,527.38/30,815.44
6. Step 6: Final answer
   x = 146,465.83