Finding the Third Proportional to 250,709 and 536,410

Step by Step Solution

1. Step 1: Write the proportion equation
   250,709 : 536,410 = 536,410 : x
2. Step 2: Convert to fraction form
   250,709/536,410 = 536,410/x
3. Step 3: Cross multiply
   250,709x = 536,410 × 536,410
4. Step 4: Simplify right side
   250,709x = 287,735,688,100
5. Step 5: Solve for x
   x = 287,735,688,100/250,709
6. Step 6: Final answer
   x = 1,147,687.91