Finding the Third Proportional to 116,519 and 248,290

Step by Step Solution

1. Step 1: Write the proportion equation
   116,519 : 248,290 = 248,290 : x
2. Step 2: Convert to fraction form
   116,519/248,290 = 248,290/x
3. Step 3: Cross multiply
   116,519x = 248,290 × 248,290
4. Step 4: Simplify right side
   116,519x = 61,647,924,100
5. Step 5: Solve for x
   x = 61,647,924,100/116,519
6. Step 6: Final answer
   x = 529,080.44