Finding the Third Proportional to 307,341.84 and 629,856

Step by Step Solution

1. Step 1: Write the proportion equation
   307,341.84 : 629,856 = 629,856 : x
2. Step 2: Convert to fraction form
   307,341.84/629,856 = 629,856/x
3. Step 3: Cross multiply
   307,341.84x = 629,856 × 629,856
4. Step 4: Simplify right side
   307,341.84x = 396,718,580,736
5. Step 5: Solve for x
   x = 396,718,580,736/307,341.84
6. Step 6: Final answer
   x = 1,290,805.63