Finding the Third Proportional to 111,918 and 173,550

Step by Step Solution

1. Step 1: Write the proportion equation
   111,918 : 173,550 = 173,550 : x
2. Step 2: Convert to fraction form
   111,918/173,550 = 173,550/x
3. Step 3: Cross multiply
   111,918x = 173,550 × 173,550
4. Step 4: Simplify right side
   111,918x = 30,119,602,500
5. Step 5: Solve for x
   x = 30,119,602,500/111,918
6. Step 6: Final answer
   x = 269,122.06