Finding the Third Proportional to 1,217,686 and 1,939,294

Step by Step Solution

1. Step 1: Write the proportion equation
   1,217,686 : 1,939,294 = 1,939,294 : x
2. Step 2: Convert to fraction form
   1,217,686/1,939,294 = 1,939,294/x
3. Step 3: Cross multiply
   1,217,686x = 1,939,294 × 1,939,294
4. Step 4: Simplify right side
   1,217,686x = 3,760,861,218,436
5. Step 5: Solve for x
   x = 3,760,861,218,436/1,217,686
6. Step 6: Final answer
   x = 3,088,531.21