Finding the Third Proportional to 163,660 and 254,002

Step by Step Solution

1. Step 1: Write the proportion equation
   163,660 : 254,002 = 254,002 : x
2. Step 2: Convert to fraction form
   163,660/254,002 = 254,002/x
3. Step 3: Cross multiply
   163,660x = 254,002 × 254,002
4. Step 4: Simplify right side
   163,660x = 64,517,016,004
5. Step 5: Solve for x
   x = 64,517,016,004/163,660
6. Step 6: Final answer
   x = 394,213.71