Finding the Third Proportional to 65,898 and 143,725.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,898 : 143,725.50 = 143,725.50 : x
2. Step 2: Convert to fraction form
   65,898/143,725.50 = 143,725.50/x
3. Step 3: Cross multiply
   65,898x = 143,725.50 × 143,725.50
4. Step 4: Simplify right side
   65,898x = 20,657,019,350.25
5. Step 5: Solve for x
   x = 20,657,019,350.25/65,898
6. Step 6: Final answer
   x = 313,469.59