Finding the Third Proportional to 65,738 and 143,984

Step by Step Solution

1. Step 1: Write the proportion equation
   65,738 : 143,984 = 143,984 : x
2. Step 2: Convert to fraction form
   65,738/143,984 = 143,984/x
3. Step 3: Cross multiply
   65,738x = 143,984 × 143,984
4. Step 4: Simplify right side
   65,738x = 20,731,392,256
5. Step 5: Solve for x
   x = 20,731,392,256/65,738
6. Step 6: Final answer
   x = 315,363.90