Finding the Third Proportional to 65,740 and 143,916

Step by Step Solution

1. Step 1: Write the proportion equation
   65,740 : 143,916 = 143,916 : x
2. Step 2: Convert to fraction form
   65,740/143,916 = 143,916/x
3. Step 3: Cross multiply
   65,740x = 143,916 × 143,916
4. Step 4: Simplify right side
   65,740x = 20,711,815,056
5. Step 5: Solve for x
   x = 20,711,815,056/65,740
6. Step 6: Final answer
   x = 315,056.51