Finding the Third Proportional to 81,823.50 and 111,071.25

Step by Step Solution

1. Step 1: Write the proportion equation
   81,823.50 : 111,071.25 = 111,071.25 : x
2. Step 2: Convert to fraction form
   81,823.50/111,071.25 = 111,071.25/x
3. Step 3: Cross multiply
   81,823.50x = 111,071.25 × 111,071.25
4. Step 4: Simplify right side
   81,823.50x = 12,336,822,576.56
5. Step 5: Solve for x
   x = 12,336,822,576.56/81,823.50
6. Step 6: Final answer
   x = 150,773.59