Finding the Third Proportional to 65,580 and 143,769

Step by Step Solution

1. Step 1: Write the proportion equation
   65,580 : 143,769 = 143,769 : x
2. Step 2: Convert to fraction form
   65,580/143,769 = 143,769/x
3. Step 3: Cross multiply
   65,580x = 143,769 × 143,769
4. Step 4: Simplify right side
   65,580x = 20,669,525,361
5. Step 5: Solve for x
   x = 20,669,525,361/65,580
6. Step 6: Final answer
   x = 315,180.32