Finding the Third Proportional to 815,864 and 1,767,296

Step by Step Solution

1. Step 1: Write the proportion equation
   815,864 : 1,767,296 = 1,767,296 : x
2. Step 2: Convert to fraction form
   815,864/1,767,296 = 1,767,296/x
3. Step 3: Cross multiply
   815,864x = 1,767,296 × 1,767,296
4. Step 4: Simplify right side
   815,864x = 3,123,335,151,616
5. Step 5: Solve for x
   x = 3,123,335,151,616/815,864
6. Step 6: Final answer
   x = 3,828,254.65