Finding the Third Proportional to 81,936 and 112,135.50

Step by Step Solution

1. Step 1: Write the proportion equation
   81,936 : 112,135.50 = 112,135.50 : x
2. Step 2: Convert to fraction form
   81,936/112,135.50 = 112,135.50/x
3. Step 3: Cross multiply
   81,936x = 112,135.50 × 112,135.50
4. Step 4: Simplify right side
   81,936x = 12,574,370,360.25
5. Step 5: Solve for x
   x = 12,574,370,360.25/81,936
6. Step 6: Final answer
   x = 153,465.76