Finding the Third Proportional to 65,558 and 143,752

Step by Step Solution

1. Step 1: Write the proportion equation
   65,558 : 143,752 = 143,752 : x
2. Step 2: Convert to fraction form
   65,558/143,752 = 143,752/x
3. Step 3: Cross multiply
   65,558x = 143,752 × 143,752
4. Step 4: Simplify right side
   65,558x = 20,664,637,504
5. Step 5: Solve for x
   x = 20,664,637,504/65,558
6. Step 6: Final answer
   x = 315,211.53