Finding the Third Proportional to 111,456 and 245,088

Step by Step Solution

1. Step 1: Write the proportion equation
   111,456 : 245,088 = 245,088 : x
2. Step 2: Convert to fraction form
   111,456/245,088 = 245,088/x
3. Step 3: Cross multiply
   111,456x = 245,088 × 245,088
4. Step 4: Simplify right side
   111,456x = 60,068,127,744
5. Step 5: Solve for x
   x = 60,068,127,744/111,456
6. Step 6: Final answer
   x = 538,940.28