Finding the Third Proportional to 191,928 and 406,002

Step by Step Solution

1. Step 1: Write the proportion equation
   191,928 : 406,002 = 406,002 : x
2. Step 2: Convert to fraction form
   191,928/406,002 = 406,002/x
3. Step 3: Cross multiply
   191,928x = 406,002 × 406,002
4. Step 4: Simplify right side
   191,928x = 164,837,624,004
5. Step 5: Solve for x
   x = 164,837,624,004/191,928
6. Step 6: Final answer
   x = 858,851.36