Finding the Third Proportional to 78,578.23 and 118,098

Step by Step Solution

1. Step 1: Write the proportion equation
   78,578.23 : 118,098 = 118,098 : x
2. Step 2: Convert to fraction form
   78,578.23/118,098 = 118,098/x
3. Step 3: Cross multiply
   78,578.23x = 118,098 × 118,098
4. Step 4: Simplify right side
   78,578.23x = 13,947,137,604
5. Step 5: Solve for x
   x = 13,947,137,604/78,578.23
6. Step 6: Final answer
   x = 177,493.67