Finding the Third Proportional to 815,880 and 1,767,328

Step by Step Solution

1. Step 1: Write the proportion equation
   815,880 : 1,767,328 = 1,767,328 : x
2. Step 2: Convert to fraction form
   815,880/1,767,328 = 1,767,328/x
3. Step 3: Cross multiply
   815,880x = 1,767,328 × 1,767,328
4. Step 4: Simplify right side
   815,880x = 3,123,448,259,584
5. Step 5: Solve for x
   x = 3,123,448,259,584/815,880
6. Step 6: Final answer
   x = 3,828,318.21