Finding the Third Proportional to 250,709.50 and 536,411

Step by Step Solution

1. Step 1: Write the proportion equation
   250,709.50 : 536,411 = 536,411 : x
2. Step 2: Convert to fraction form
   250,709.50/536,411 = 536,411/x
3. Step 3: Cross multiply
   250,709.50x = 536,411 × 536,411
4. Step 4: Simplify right side
   250,709.50x = 287,736,760,921
5. Step 5: Solve for x
   x = 287,736,760,921/250,709.50
6. Step 6: Final answer
   x = 1,147,689.90