Finding the Third Proportional to 454,443.50 and 691,108

Step by Step Solution

1. Step 1: Write the proportion equation
   454,443.50 : 691,108 = 691,108 : x
2. Step 2: Convert to fraction form
   454,443.50/691,108 = 691,108/x
3. Step 3: Cross multiply
   454,443.50x = 691,108 × 691,108
4. Step 4: Simplify right side
   454,443.50x = 477,630,267,664
5. Step 5: Solve for x
   x = 477,630,267,664/454,443.50
6. Step 6: Final answer
   x = 1,051,022.33