Finding the Third Proportional to 72,289 and 112,805

Step by Step Solution

1. Step 1: Write the proportion equation
   72,289 : 112,805 = 112,805 : x
2. Step 2: Convert to fraction form
   72,289/112,805 = 112,805/x
3. Step 3: Cross multiply
   72,289x = 112,805 × 112,805
4. Step 4: Simplify right side
   72,289x = 12,724,968,025
5. Step 5: Solve for x
   x = 12,724,968,025/72,289
6. Step 6: Final answer
   x = 176,029.11