Finding the Third Proportional to 140,915.50 and 295,678

Step by Step Solution

1. Step 1: Write the proportion equation
   140,915.50 : 295,678 = 295,678 : x
2. Step 2: Convert to fraction form
   140,915.50/295,678 = 295,678/x
3. Step 3: Cross multiply
   140,915.50x = 295,678 × 295,678
4. Step 4: Simplify right side
   140,915.50x = 87,425,479,684
5. Step 5: Solve for x
   x = 87,425,479,684/140,915.50
6. Step 6: Final answer
   x = 620,410.67