Finding the Third Proportional to 1,663,072 and 2,678,352

Step by Step Solution

1. Step 1: Write the proportion equation
   1,663,072 : 2,678,352 = 2,678,352 : x
2. Step 2: Convert to fraction form
   1,663,072/2,678,352 = 2,678,352/x
3. Step 3: Cross multiply
   1,663,072x = 2,678,352 × 2,678,352
4. Step 4: Simplify right side
   1,663,072x = 7,173,569,435,904
5. Step 5: Solve for x
   x = 7,173,569,435,904/1,663,072
6. Step 6: Final answer
   x = 4,313,444.90