Finding the Third Proportional to 63,960 and 140,610

Step by Step Solution

1. Step 1: Write the proportion equation
   63,960 : 140,610 = 140,610 : x
2. Step 2: Convert to fraction form
   63,960/140,610 = 140,610/x
3. Step 3: Cross multiply
   63,960x = 140,610 × 140,610
4. Step 4: Simplify right side
   63,960x = 19,771,172,100
5. Step 5: Solve for x
   x = 19,771,172,100/63,960
6. Step 6: Final answer
   x = 309,117.76