Finding the Third Proportional to 79,489.50 and 111,411.75

Step by Step Solution

1. Step 1: Write the proportion equation
   79,489.50 : 111,411.75 = 111,411.75 : x
2. Step 2: Convert to fraction form
   79,489.50/111,411.75 = 111,411.75/x
3. Step 3: Cross multiply
   79,489.50x = 111,411.75 × 111,411.75
4. Step 4: Simplify right side
   79,489.50x = 12,412,578,038.06
5. Step 5: Solve for x
   x = 12,412,578,038.06/79,489.50
6. Step 6: Final answer
   x = 156,153.68