Finding the Third Proportional to 687,616 and 1,051,187

Step by Step Solution

1. Step 1: Write the proportion equation
   687,616 : 1,051,187 = 1,051,187 : x
2. Step 2: Convert to fraction form
   687,616/1,051,187 = 1,051,187/x
3. Step 3: Cross multiply
   687,616x = 1,051,187 × 1,051,187
4. Step 4: Simplify right side
   687,616x = 1,104,994,108,969
5. Step 5: Solve for x
   x = 1,104,994,108,969/687,616
6. Step 6: Final answer
   x = 1,606,993.01