Finding the Third Proportional to 65,772 and 143,973

Step by Step Solution

1. Step 1: Write the proportion equation
   65,772 : 143,973 = 143,973 : x
2. Step 2: Convert to fraction form
   65,772/143,973 = 143,973/x
3. Step 3: Cross multiply
   65,772x = 143,973 × 143,973
4. Step 4: Simplify right side
   65,772x = 20,728,224,729
5. Step 5: Solve for x
   x = 20,728,224,729/65,772
6. Step 6: Final answer
   x = 315,152.72