Finding the Third Proportional to 863,730 and 1,782,783

Step by Step Solution

1. Step 1: Write the proportion equation
   863,730 : 1,782,783 = 1,782,783 : x
2. Step 2: Convert to fraction form
   863,730/1,782,783 = 1,782,783/x
3. Step 3: Cross multiply
   863,730x = 1,782,783 × 1,782,783
4. Step 4: Simplify right side
   863,730x = 3,178,315,225,089
5. Step 5: Solve for x
   x = 3,178,315,225,089/863,730
6. Step 6: Final answer
   x = 3,679,755.51