Finding the Third Proportional to 815,780 and 1,749,658

Step by Step Solution

1. Step 1: Write the proportion equation
   815,780 : 1,749,658 = 1,749,658 : x
2. Step 2: Convert to fraction form
   815,780/1,749,658 = 1,749,658/x
3. Step 3: Cross multiply
   815,780x = 1,749,658 × 1,749,658
4. Step 4: Simplify right side
   815,780x = 3,061,303,116,964
5. Step 5: Solve for x
   x = 3,061,303,116,964/815,780
6. Step 6: Final answer
   x = 3,752,608.69