Finding the Third Proportional to 81,748.50 and 112,576.50

Step by Step Solution

1. Step 1: Write the proportion equation
   81,748.50 : 112,576.50 = 112,576.50 : x
2. Step 2: Convert to fraction form
   81,748.50/112,576.50 = 112,576.50/x
3. Step 3: Cross multiply
   81,748.50x = 112,576.50 × 112,576.50
4. Step 4: Simplify right side
   81,748.50x = 12,673,468,352.25
5. Step 5: Solve for x
   x = 12,673,468,352.25/81,748.50
6. Step 6: Final answer
   x = 155,029.98