Finding the Third Proportional to 789,911 and 1,191,819

Step by Step Solution

1. Step 1: Write the proportion equation
   789,911 : 1,191,819 = 1,191,819 : x
2. Step 2: Convert to fraction form
   789,911/1,191,819 = 1,191,819/x
3. Step 3: Cross multiply
   789,911x = 1,191,819 × 1,191,819
4. Step 4: Simplify right side
   789,911x = 1,420,432,528,761
5. Step 5: Solve for x
   x = 1,420,432,528,761/789,911
6. Step 6: Final answer
   x = 1,798,218.44