Finding the Third Proportional to 136,647 and 300,196

Step by Step Solution

1. Step 1: Write the proportion equation
   136,647 : 300,196 = 300,196 : x
2. Step 2: Convert to fraction form
   136,647/300,196 = 300,196/x
3. Step 3: Cross multiply
   136,647x = 300,196 × 300,196
4. Step 4: Simplify right side
   136,647x = 90,117,638,416
5. Step 5: Solve for x
   x = 90,117,638,416/136,647
6. Step 6: Final answer
   x = 659,492.26