Finding the Third Proportional to 667,786 and 1,574,789

Step by Step Solution

1. Step 1: Write the proportion equation
   667,786 : 1,574,789 = 1,574,789 : x
2. Step 2: Convert to fraction form
   667,786/1,574,789 = 1,574,789/x
3. Step 3: Cross multiply
   667,786x = 1,574,789 × 1,574,789
4. Step 4: Simplify right side
   667,786x = 2,479,960,394,521
5. Step 5: Solve for x
   x = 2,479,960,394,521/667,786
6. Step 6: Final answer
   x = 3,713,705.28