Finding the Third Proportional to 65,736.50 and 143,912

Step by Step Solution

1. Step 1: Write the proportion equation
   65,736.50 : 143,912 = 143,912 : x
2. Step 2: Convert to fraction form
   65,736.50/143,912 = 143,912/x
3. Step 3: Cross multiply
   65,736.50x = 143,912 × 143,912
4. Step 4: Simplify right side
   65,736.50x = 20,710,663,744
5. Step 5: Solve for x
   x = 20,710,663,744/65,736.50
6. Step 6: Final answer
   x = 315,055.77