Finding the Third Proportional to 65,358 and 143,162

Step by Step Solution

1. Step 1: Write the proportion equation
   65,358 : 143,162 = 143,162 : x
2. Step 2: Convert to fraction form
   65,358/143,162 = 143,162/x
3. Step 3: Cross multiply
   65,358x = 143,162 × 143,162
4. Step 4: Simplify right side
   65,358x = 20,495,358,244
5. Step 5: Solve for x
   x = 20,495,358,244/65,358
6. Step 6: Final answer
   x = 313,586.07