Finding the Third Proportional to 63,740 and 140,065

Step by Step Solution

1. Step 1: Write the proportion equation
   63,740 : 140,065 = 140,065 : x
2. Step 2: Convert to fraction form
   63,740/140,065 = 140,065/x
3. Step 3: Cross multiply
   63,740x = 140,065 × 140,065
4. Step 4: Simplify right side
   63,740x = 19,618,204,225
5. Step 5: Solve for x
   x = 19,618,204,225/63,740
6. Step 6: Final answer
   x = 307,784.82