Finding the Third Proportional to 78,224 and 166,142

Step by Step Solution

1. Step 1: Write the proportion equation
   78,224 : 166,142 = 166,142 : x
2. Step 2: Convert to fraction form
   78,224/166,142 = 166,142/x
3. Step 3: Cross multiply
   78,224x = 166,142 × 166,142
4. Step 4: Simplify right side
   78,224x = 27,603,164,164
5. Step 5: Solve for x
   x = 27,603,164,164/78,224
6. Step 6: Final answer
   x = 352,873.34