Finding the Third Proportional to 111,915 and 245,882

Step by Step Solution

1. Step 1: Write the proportion equation
   111,915 : 245,882 = 245,882 : x
2. Step 2: Convert to fraction form
   111,915/245,882 = 245,882/x
3. Step 3: Cross multiply
   111,915x = 245,882 × 245,882
4. Step 4: Simplify right side
   111,915x = 60,457,957,924
5. Step 5: Solve for x
   x = 60,457,957,924/111,915
6. Step 6: Final answer
   x = 540,213.18