Finding the Third Proportional to 359,919 and 764,109

Step by Step Solution

1. Step 1: Write the proportion equation
   359,919 : 764,109 = 764,109 : x
2. Step 2: Convert to fraction form
   359,919/764,109 = 764,109/x
3. Step 3: Cross multiply
   359,919x = 764,109 × 764,109
4. Step 4: Simplify right side
   359,919x = 583,862,563,881
5. Step 5: Solve for x
   x = 583,862,563,881/359,919
6. Step 6: Final answer
   x = 1,622,205.45