Finding the Third Proportional to 78,040 and 167,916

Step by Step Solution

1. Step 1: Write the proportion equation
   78,040 : 167,916 = 167,916 : x
2. Step 2: Convert to fraction form
   78,040/167,916 = 167,916/x
3. Step 3: Cross multiply
   78,040x = 167,916 × 167,916
4. Step 4: Simplify right side
   78,040x = 28,195,783,056
5. Step 5: Solve for x
   x = 28,195,783,056/78,040
6. Step 6: Final answer
   x = 361,299.12