Finding the Third Proportional to 1,189,420 and 1,915,147

Step by Step Solution

1. Step 1: Write the proportion equation
   1,189,420 : 1,915,147 = 1,915,147 : x
2. Step 2: Convert to fraction form
   1,189,420/1,915,147 = 1,915,147/x
3. Step 3: Cross multiply
   1,189,420x = 1,915,147 × 1,915,147
4. Step 4: Simplify right side
   1,189,420x = 3,667,788,031,609
5. Step 5: Solve for x
   x = 3,667,788,031,609/1,189,420
6. Step 6: Final answer
   x = 3,083,677.79