Finding the Third Proportional to 617,154 and 818,896.50

Step by Step Solution

1. Step 1: Write the proportion equation
   617,154 : 818,896.50 = 818,896.50 : x
2. Step 2: Convert to fraction form
   617,154/818,896.50 = 818,896.50/x
3. Step 3: Cross multiply
   617,154x = 818,896.50 × 818,896.50
4. Step 4: Simplify right side
   617,154x = 670,591,477,712.25
5. Step 5: Solve for x
   x = 670,591,477,712.25/617,154
6. Step 6: Final answer
   x = 1,086,586.94