Finding the Third Proportional to 631,888.50 and 819,743.25

Step by Step Solution

1. Step 1: Write the proportion equation
   631,888.50 : 819,743.25 = 819,743.25 : x
2. Step 2: Convert to fraction form
   631,888.50/819,743.25 = 819,743.25/x
3. Step 3: Cross multiply
   631,888.50x = 819,743.25 × 819,743.25
4. Step 4: Simplify right side
   631,888.50x = 671,978,995,920.56
5. Step 5: Solve for x
   x = 671,978,995,920.56/631,888.50
6. Step 6: Final answer
   x = 1,063,445.52