Finding the Third Proportional to 2,663,390 and 4,173,582

Step by Step Solution

1. Step 1: Write the proportion equation
   2,663,390 : 4,173,582 = 4,173,582 : x
2. Step 2: Convert to fraction form
   2,663,390/4,173,582 = 4,173,582/x
3. Step 3: Cross multiply
   2,663,390x = 4,173,582 × 4,173,582
4. Step 4: Simplify right side
   2,663,390x = 17,418,786,710,724
5. Step 5: Solve for x
   x = 17,418,786,710,724/2,663,390
6. Step 6: Final answer
   x = 6,540,081.14