Finding the Third Proportional to 191,723 and 403,271

Step by Step Solution

1. Step 1: Write the proportion equation
   191,723 : 403,271 = 403,271 : x
2. Step 2: Convert to fraction form
   191,723/403,271 = 403,271/x
3. Step 3: Cross multiply
   191,723x = 403,271 × 403,271
4. Step 4: Simplify right side
   191,723x = 162,627,499,441
5. Step 5: Solve for x
   x = 162,627,499,441/191,723
6. Step 6: Final answer
   x = 848,241.99