Finding the Third Proportional to 789,394 and 1,661,312

Step by Step Solution

1. Step 1: Write the proportion equation
   789,394 : 1,661,312 = 1,661,312 : x
2. Step 2: Convert to fraction form
   789,394/1,661,312 = 1,661,312/x
3. Step 3: Cross multiply
   789,394x = 1,661,312 × 1,661,312
4. Step 4: Simplify right side
   789,394x = 2,759,957,561,344
5. Step 5: Solve for x
   x = 2,759,957,561,344/789,394
6. Step 6: Final answer
   x = 3,496,299.14