Finding the Third Proportional to 65,731.50 and 143,902

Step by Step Solution

1. Step 1: Write the proportion equation
   65,731.50 : 143,902 = 143,902 : x
2. Step 2: Convert to fraction form
   65,731.50/143,902 = 143,902/x
3. Step 3: Cross multiply
   65,731.50x = 143,902 × 143,902
4. Step 4: Simplify right side
   65,731.50x = 20,707,785,604
5. Step 5: Solve for x
   x = 20,707,785,604/65,731.50
6. Step 6: Final answer
   x = 315,035.95