Finding the Third Proportional to 248,358 and 536,404

Step by Step Solution

1. Step 1: Write the proportion equation
   248,358 : 536,404 = 536,404 : x
2. Step 2: Convert to fraction form
   248,358/536,404 = 536,404/x
3. Step 3: Cross multiply
   248,358x = 536,404 × 536,404
4. Step 4: Simplify right side
   248,358x = 287,729,251,216
5. Step 5: Solve for x
   x = 287,729,251,216/248,358
6. Step 6: Final answer
   x = 1,158,526.20