Finding the Third Proportional to 446,229 and 679,802.63

Step by Step Solution

1. Step 1: Write the proportion equation
   446,229 : 679,802.63 = 679,802.63 : x
2. Step 2: Convert to fraction form
   446,229/679,802.63 = 679,802.63/x
3. Step 3: Cross multiply
   446,229x = 679,802.63 × 679,802.63
4. Step 4: Simplify right side
   446,229x = 462,131,608,956.89
5. Step 5: Solve for x
   x = 462,131,608,956.89/446,229
6. Step 6: Final answer
   x = 1,035,637.78