Finding the Third Proportional to 687,930 and 1,042,281

Step by Step Solution

1. Step 1: Write the proportion equation
   687,930 : 1,042,281 = 1,042,281 : x
2. Step 2: Convert to fraction form
   687,930/1,042,281 = 1,042,281/x
3. Step 3: Cross multiply
   687,930x = 1,042,281 × 1,042,281
4. Step 4: Simplify right side
   687,930x = 1,086,349,682,961
5. Step 5: Solve for x
   x = 1,086,349,682,961/687,930
6. Step 6: Final answer
   x = 1,579,157.30