Finding the Third Proportional to 863,776 and 1,782,880

Step by Step Solution

1. Step 1: Write the proportion equation
   863,776 : 1,782,880 = 1,782,880 : x
2. Step 2: Convert to fraction form
   863,776/1,782,880 = 1,782,880/x
3. Step 3: Cross multiply
   863,776x = 1,782,880 × 1,782,880
4. Step 4: Simplify right side
   863,776x = 3,178,661,094,400
5. Step 5: Solve for x
   x = 3,178,661,094,400/863,776
6. Step 6: Final answer
   x = 3,679,959.96