Finding the Third Proportional to 307,006.50 and 629,214

Step by Step Solution

1. Step 1: Write the proportion equation
   307,006.50 : 629,214 = 629,214 : x
2. Step 2: Convert to fraction form
   307,006.50/629,214 = 629,214/x
3. Step 3: Cross multiply
   307,006.50x = 629,214 × 629,214
4. Step 4: Simplify right side
   307,006.50x = 395,910,257,796
5. Step 5: Solve for x
   x = 395,910,257,796/307,006.50
6. Step 6: Final answer
   x = 1,289,582.66