Finding the Third Proportional to 78,807 and 171,010

Step by Step Solution

1. Step 1: Write the proportion equation
   78,807 : 171,010 = 171,010 : x
2. Step 2: Convert to fraction form
   78,807/171,010 = 171,010/x
3. Step 3: Cross multiply
   78,807x = 171,010 × 171,010
4. Step 4: Simplify right side
   78,807x = 29,244,420,100
5. Step 5: Solve for x
   x = 29,244,420,100/78,807
6. Step 6: Final answer
   x = 371,089.12