Finding the Third Proportional to 815,880 and 1,767,356

Step by Step Solution

1. Step 1: Write the proportion equation
   815,880 : 1,767,356 = 1,767,356 : x
2. Step 2: Convert to fraction form
   815,880/1,767,356 = 1,767,356/x
3. Step 3: Cross multiply
   815,880x = 1,767,356 × 1,767,356
4. Step 4: Simplify right side
   815,880x = 3,123,547,230,736
5. Step 5: Solve for x
   x = 3,123,547,230,736/815,880
6. Step 6: Final answer
   x = 3,828,439.51