Finding the Third Proportional to 416,558.50 and 862,655

Step by Step Solution

1. Step 1: Write the proportion equation
   416,558.50 : 862,655 = 862,655 : x
2. Step 2: Convert to fraction form
   416,558.50/862,655 = 862,655/x
3. Step 3: Cross multiply
   416,558.50x = 862,655 × 862,655
4. Step 4: Simplify right side
   416,558.50x = 744,173,649,025
5. Step 5: Solve for x
   x = 744,173,649,025/416,558.50
6. Step 6: Final answer
   x = 1,786,480.53