Finding the Third Proportional to 115,476 and 248,142

Step by Step Solution

1. Step 1: Write the proportion equation
   115,476 : 248,142 = 248,142 : x
2. Step 2: Convert to fraction form
   115,476/248,142 = 248,142/x
3. Step 3: Cross multiply
   115,476x = 248,142 × 248,142
4. Step 4: Simplify right side
   115,476x = 61,574,452,164
5. Step 5: Solve for x
   x = 61,574,452,164/115,476
6. Step 6: Final answer
   x = 533,222.94