Finding the Third Proportional to 450,135 and 696,766.50

Step by Step Solution

1. Step 1: Write the proportion equation
   450,135 : 696,766.50 = 696,766.50 : x
2. Step 2: Convert to fraction form
   450,135/696,766.50 = 696,766.50/x
3. Step 3: Cross multiply
   450,135x = 696,766.50 × 696,766.50
4. Step 4: Simplify right side
   450,135x = 485,483,555,522.25
5. Step 5: Solve for x
   x = 485,483,555,522.25/450,135
6. Step 6: Final answer
   x = 1,078,528.79