Finding the Third Proportional to 510,870 and 773,397

Step by Step Solution

1. Step 1: Write the proportion equation
   510,870 : 773,397 = 773,397 : x
2. Step 2: Convert to fraction form
   510,870/773,397 = 773,397/x
3. Step 3: Cross multiply
   510,870x = 773,397 × 773,397
4. Step 4: Simplify right side
   510,870x = 598,142,919,609
5. Step 5: Solve for x
   x = 598,142,919,609/510,870
6. Step 6: Final answer
   x = 1,170,831.95