Finding the Third Proportional to 815,510 and 1,705,378

Step by Step Solution

1. Step 1: Write the proportion equation
   815,510 : 1,705,378 = 1,705,378 : x
2. Step 2: Convert to fraction form
   815,510/1,705,378 = 1,705,378/x
3. Step 3: Cross multiply
   815,510x = 1,705,378 × 1,705,378
4. Step 4: Simplify right side
   815,510x = 2,908,314,122,884
5. Step 5: Solve for x
   x = 2,908,314,122,884/815,510
6. Step 6: Final answer
   x = 3,566,251.94