Finding the Third Proportional to 450,124.50 and 696,753

Step by Step Solution

1. Step 1: Write the proportion equation
   450,124.50 : 696,753 = 696,753 : x
2. Step 2: Convert to fraction form
   450,124.50/696,753 = 696,753/x
3. Step 3: Cross multiply
   450,124.50x = 696,753 × 696,753
4. Step 4: Simplify right side
   450,124.50x = 485,464,743,009
5. Step 5: Solve for x
   x = 485,464,743,009/450,124.50
6. Step 6: Final answer
   x = 1,078,512.15