Finding the Third Proportional to 83,340 and 111,330

Step by Step Solution

1. Step 1: Write the proportion equation
   83,340 : 111,330 = 111,330 : x
2. Step 2: Convert to fraction form
   83,340/111,330 = 111,330/x
3. Step 3: Cross multiply
   83,340x = 111,330 × 111,330
4. Step 4: Simplify right side
   83,340x = 12,394,368,900
5. Step 5: Solve for x
   x = 12,394,368,900/83,340
6. Step 6: Final answer
   x = 148,720.53