Finding the Third Proportional to 78,815 and 110,851

Step by Step Solution

1. Step 1: Write the proportion equation
   78,815 : 110,851 = 110,851 : x
2. Step 2: Convert to fraction form
   78,815/110,851 = 110,851/x
3. Step 3: Cross multiply
   78,815x = 110,851 × 110,851
4. Step 4: Simplify right side
   78,815x = 12,287,944,201
5. Step 5: Solve for x
   x = 12,287,944,201/78,815
6. Step 6: Final answer
   x = 155,908.70