Finding the Third Proportional to 262,300.78 and 416,719.69

Step by Step Solution

1. Step 1: Write the proportion equation
   262,300.78 : 416,719.69 = 416,719.69 : x
2. Step 2: Convert to fraction form
   262,300.78/416,719.69 = 416,719.69/x
3. Step 3: Cross multiply
   262,300.78x = 416,719.69 × 416,719.69
4. Step 4: Simplify right side
   262,300.78x = 173,655,297,950.10
5. Step 5: Solve for x
   x = 173,655,297,950.10/262,300.78
6. Step 6: Final answer
   x = 662,046.44