Finding the Third Proportional to 815,878 and 1,767,352

Step by Step Solution

1. Step 1: Write the proportion equation
   815,878 : 1,767,352 = 1,767,352 : x
2. Step 2: Convert to fraction form
   815,878/1,767,352 = 1,767,352/x
3. Step 3: Cross multiply
   815,878x = 1,767,352 × 1,767,352
4. Step 4: Simplify right side
   815,878x = 3,123,533,091,904
5. Step 5: Solve for x
   x = 3,123,533,091,904/815,878
6. Step 6: Final answer
   x = 3,828,431.57