Finding the Third Proportional to 1,471,988 and 2,159,517

Step by Step Solution

1. Step 1: Write the proportion equation
   1,471,988 : 2,159,517 = 2,159,517 : x
2. Step 2: Convert to fraction form
   1,471,988/2,159,517 = 2,159,517/x
3. Step 3: Cross multiply
   1,471,988x = 2,159,517 × 2,159,517
4. Step 4: Simplify right side
   1,471,988x = 4,663,513,673,289
5. Step 5: Solve for x
   x = 4,663,513,673,289/1,471,988
6. Step 6: Final answer
   x = 3,168,173.70