Finding the Third Proportional to 647,142 and 979,762

Step by Step Solution

1. Step 1: Write the proportion equation
   647,142 : 979,762 = 979,762 : x
2. Step 2: Convert to fraction form
   647,142/979,762 = 979,762/x
3. Step 3: Cross multiply
   647,142x = 979,762 × 979,762
4. Step 4: Simplify right side
   647,142x = 959,933,576,644
5. Step 5: Solve for x
   x = 959,933,576,644/647,142
6. Step 6: Final answer
   x = 1,483,343.03