Finding the Third Proportional to 1,782,404 and 3,711,689

Step by Step Solution

1. Step 1: Write the proportion equation
   1,782,404 : 3,711,689 = 3,711,689 : x
2. Step 2: Convert to fraction form
   1,782,404/3,711,689 = 3,711,689/x
3. Step 3: Cross multiply
   1,782,404x = 3,711,689 × 3,711,689
4. Step 4: Simplify right side
   1,782,404x = 13,776,635,232,721
5. Step 5: Solve for x
   x = 13,776,635,232,721/1,782,404
6. Step 6: Final answer
   x = 7,729,243.89