Finding the Third Proportional to 815,870 and 1,767,308

Step by Step Solution

1. Step 1: Write the proportion equation
   815,870 : 1,767,308 = 1,767,308 : x
2. Step 2: Convert to fraction form
   815,870/1,767,308 = 1,767,308/x
3. Step 3: Cross multiply
   815,870x = 1,767,308 × 1,767,308
4. Step 4: Simplify right side
   815,870x = 3,123,377,566,864
5. Step 5: Solve for x
   x = 3,123,377,566,864/815,870
6. Step 6: Final answer
   x = 3,828,278.48