Finding the Third Proportional to 64,756 and 140,906

Step by Step Solution

1. Step 1: Write the proportion equation
   64,756 : 140,906 = 140,906 : x
2. Step 2: Convert to fraction form
   64,756/140,906 = 140,906/x
3. Step 3: Cross multiply
   64,756x = 140,906 × 140,906
4. Step 4: Simplify right side
   64,756x = 19,854,500,836
5. Step 5: Solve for x
   x = 19,854,500,836/64,756
6. Step 6: Final answer
   x = 306,604.81