Finding the Third Proportional to 78,072 and 116,894

Step by Step Solution

1. Step 1: Write the proportion equation
   78,072 : 116,894 = 116,894 : x
2. Step 2: Convert to fraction form
   78,072/116,894 = 116,894/x
3. Step 3: Cross multiply
   78,072x = 116,894 × 116,894
4. Step 4: Simplify right side
   78,072x = 13,664,207,236
5. Step 5: Solve for x
   x = 13,664,207,236/78,072
6. Step 6: Final answer
   x = 175,020.59