Finding the Third Proportional to 248,680 and 536,672

Step by Step Solution

1. Step 1: Write the proportion equation
   248,680 : 536,672 = 536,672 : x
2. Step 2: Convert to fraction form
   248,680/536,672 = 536,672/x
3. Step 3: Cross multiply
   248,680x = 536,672 × 536,672
4. Step 4: Simplify right side
   248,680x = 288,016,835,584
5. Step 5: Solve for x
   x = 288,016,835,584/248,680
6. Step 6: Final answer
   x = 1,158,182.55