Finding the Third Proportional to 436,872 and 659,322

Step by Step Solution

1. Step 1: Write the proportion equation
   436,872 : 659,322 = 659,322 : x
2. Step 2: Convert to fraction form
   436,872/659,322 = 659,322/x
3. Step 3: Cross multiply
   436,872x = 659,322 × 659,322
4. Step 4: Simplify right side
   436,872x = 434,705,499,684
5. Step 5: Solve for x
   x = 434,705,499,684/436,872
6. Step 6: Final answer
   x = 995,040.88