Finding the Third Proportional to 79,515 and 111,451.50

Step by Step Solution

1. Step 1: Write the proportion equation
   79,515 : 111,451.50 = 111,451.50 : x
2. Step 2: Convert to fraction form
   79,515/111,451.50 = 111,451.50/x
3. Step 3: Cross multiply
   79,515x = 111,451.50 × 111,451.50
4. Step 4: Simplify right side
   79,515x = 12,421,436,852.25
5. Step 5: Solve for x
   x = 12,421,436,852.25/79,515
6. Step 6: Final answer
   x = 156,215.01