Finding the Third Proportional to 986,393 and 2,155,414

Step by Step Solution

1. Step 1: Write the proportion equation
   986,393 : 2,155,414 = 2,155,414 : x
2. Step 2: Convert to fraction form
   986,393/2,155,414 = 2,155,414/x
3. Step 3: Cross multiply
   986,393x = 2,155,414 × 2,155,414
4. Step 4: Simplify right side
   986,393x = 4,645,809,511,396
5. Step 5: Solve for x
   x = 4,645,809,511,396/986,393
6. Step 6: Final answer
   x = 4,709,897.08