Finding the Third Proportional to 678,872 and 1,025,230

Step by Step Solution

1. Step 1: Write the proportion equation
   678,872 : 1,025,230 = 1,025,230 : x
2. Step 2: Convert to fraction form
   678,872/1,025,230 = 1,025,230/x
3. Step 3: Cross multiply
   678,872x = 1,025,230 × 1,025,230
4. Step 4: Simplify right side
   678,872x = 1,051,096,552,900
5. Step 5: Solve for x
   x = 1,051,096,552,900/678,872
6. Step 6: Final answer
   x = 1,548,298.58