Finding the Third Proportional to 815,740 and 1,749,540

Step by Step Solution

1. Step 1: Write the proportion equation
   815,740 : 1,749,540 = 1,749,540 : x
2. Step 2: Convert to fraction form
   815,740/1,749,540 = 1,749,540/x
3. Step 3: Cross multiply
   815,740x = 1,749,540 × 1,749,540
4. Step 4: Simplify right side
   815,740x = 3,060,890,211,600
5. Step 5: Solve for x
   x = 3,060,890,211,600/815,740
6. Step 6: Final answer
   x = 3,752,286.53