Finding the Third Proportional to 191,436 and 408,024

Step by Step Solution

1. Step 1: Write the proportion equation
   191,436 : 408,024 = 408,024 : x
2. Step 2: Convert to fraction form
   191,436/408,024 = 408,024/x
3. Step 3: Cross multiply
   191,436x = 408,024 × 408,024
4. Step 4: Simplify right side
   191,436x = 166,483,584,576
5. Step 5: Solve for x
   x = 166,483,584,576/191,436
6. Step 6: Final answer
   x = 869,656.62