Finding the Third Proportional to 65,553 and 143,010

Step by Step Solution

1. Step 1: Write the proportion equation
   65,553 : 143,010 = 143,010 : x
2. Step 2: Convert to fraction form
   65,553/143,010 = 143,010/x
3. Step 3: Cross multiply
   65,553x = 143,010 × 143,010
4. Step 4: Simplify right side
   65,553x = 20,451,860,100
5. Step 5: Solve for x
   x = 20,451,860,100/65,553
6. Step 6: Final answer
   x = 311,989.69