Finding the Third Proportional to 819,261 and 1,677,888

Step by Step Solution

1. Step 1: Write the proportion equation
   819,261 : 1,677,888 = 1,677,888 : x
2. Step 2: Convert to fraction form
   819,261/1,677,888 = 1,677,888/x
3. Step 3: Cross multiply
   819,261x = 1,677,888 × 1,677,888
4. Step 4: Simplify right side
   819,261x = 2,815,308,140,544
5. Step 5: Solve for x
   x = 2,815,308,140,544/819,261
6. Step 6: Final answer
   x = 3,436,399.56