Finding the Third Proportional to 81,745.50 and 112,572

Step by Step Solution

1. Step 1: Write the proportion equation
   81,745.50 : 112,572 = 112,572 : x
2. Step 2: Convert to fraction form
   81,745.50/112,572 = 112,572/x
3. Step 3: Cross multiply
   81,745.50x = 112,572 × 112,572
4. Step 4: Simplify right side
   81,745.50x = 12,672,455,184
5. Step 5: Solve for x
   x = 12,672,455,184/81,745.50
6. Step 6: Final answer
   x = 155,023.28