Finding the Third Proportional to 65,900 and 143,730

Step by Step Solution

1. Step 1: Write the proportion equation
   65,900 : 143,730 = 143,730 : x
2. Step 2: Convert to fraction form
   65,900/143,730 = 143,730/x
3. Step 3: Cross multiply
   65,900x = 143,730 × 143,730
4. Step 4: Simplify right side
   65,900x = 20,658,312,900
5. Step 5: Solve for x
   x = 20,658,312,900/65,900
6. Step 6: Final answer
   x = 313,479.71