Finding the Third Proportional to 454,855.50 and 696,195

Step by Step Solution

1. Step 1: Write the proportion equation
   454,855.50 : 696,195 = 696,195 : x
2. Step 2: Convert to fraction form
   454,855.50/696,195 = 696,195/x
3. Step 3: Cross multiply
   454,855.50x = 696,195 × 696,195
4. Step 4: Simplify right side
   454,855.50x = 484,687,478,025
5. Step 5: Solve for x
   x = 484,687,478,025/454,855.50
6. Step 6: Final answer
   x = 1,065,585.62