Finding the Third Proportional to 309,664.69 and 452,547.56

Step by Step Solution

1. Step 1: Write the proportion equation
   309,664.69 : 452,547.56 = 452,547.56 : x
2. Step 2: Convert to fraction form
   309,664.69/452,547.56 = 452,547.56/x
3. Step 3: Cross multiply
   309,664.69x = 452,547.56 × 452,547.56
4. Step 4: Simplify right side
   309,664.69x = 204,799,296,324.69
5. Step 5: Solve for x
   x = 204,799,296,324.69/309,664.69
6. Step 6: Final answer
   x = 661,358.25