Finding the Third Proportional to 766,310 and 1,665,268

Step by Step Solution

1. Step 1: Write the proportion equation
   766,310 : 1,665,268 = 1,665,268 : x
2. Step 2: Convert to fraction form
   766,310/1,665,268 = 1,665,268/x
3. Step 3: Cross multiply
   766,310x = 1,665,268 × 1,665,268
4. Step 4: Simplify right side
   766,310x = 2,773,117,511,824
5. Step 5: Solve for x
   x = 2,773,117,511,824/766,310
6. Step 6: Final answer
   x = 3,618,793.32