Finding the Third Proportional to 213,590.50 and 454,789

Step by Step Solution

1. Step 1: Write the proportion equation
   213,590.50 : 454,789 = 454,789 : x
2. Step 2: Convert to fraction form
   213,590.50/454,789 = 454,789/x
3. Step 3: Cross multiply
   213,590.50x = 454,789 × 454,789
4. Step 4: Simplify right side
   213,590.50x = 206,833,034,521
5. Step 5: Solve for x
   x = 206,833,034,521/213,590.50
6. Step 6: Final answer
   x = 968,362.52