Finding the Third Proportional to 815,791 and 1,749,679

Step by Step Solution

1. Step 1: Write the proportion equation
   815,791 : 1,749,679 = 1,749,679 : x
2. Step 2: Convert to fraction form
   815,791/1,749,679 = 1,749,679/x
3. Step 3: Cross multiply
   815,791x = 1,749,679 × 1,749,679
4. Step 4: Simplify right side
   815,791x = 3,061,376,603,041
5. Step 5: Solve for x
   x = 3,061,376,603,041/815,791
6. Step 6: Final answer
   x = 3,752,648.17