Finding the Third Proportional to 815,116.50 and 1,787,697

Step by Step Solution

1. Step 1: Write the proportion equation
   815,116.50 : 1,787,697 = 1,787,697 : x
2. Step 2: Convert to fraction form
   815,116.50/1,787,697 = 1,787,697/x
3. Step 3: Cross multiply
   815,116.50x = 1,787,697 × 1,787,697
4. Step 4: Simplify right side
   815,116.50x = 3,195,860,563,809
5. Step 5: Solve for x
   x = 3,195,860,563,809/815,116.50
6. Step 6: Final answer
   x = 3,920,740.86