Finding the Third Proportional to 72,276 and 111,230

Step by Step Solution

1. Step 1: Write the proportion equation
   72,276 : 111,230 = 111,230 : x
2. Step 2: Convert to fraction form
   72,276/111,230 = 111,230/x
3. Step 3: Cross multiply
   72,276x = 111,230 × 111,230
4. Step 4: Simplify right side
   72,276x = 12,372,112,900
5. Step 5: Solve for x
   x = 12,372,112,900/72,276
6. Step 6: Final answer
   x = 171,178.72