Finding the Third Proportional to 78,808 and 171,012

Step by Step Solution

1. Step 1: Write the proportion equation
   78,808 : 171,012 = 171,012 : x
2. Step 2: Convert to fraction form
   78,808/171,012 = 171,012/x
3. Step 3: Cross multiply
   78,808x = 171,012 × 171,012
4. Step 4: Simplify right side
   78,808x = 29,245,104,144
5. Step 5: Solve for x
   x = 29,245,104,144/78,808
6. Step 6: Final answer
   x = 371,093.09