Finding the Third Proportional to 2,728,430 and 4,547,109

Step by Step Solution

1. Step 1: Write the proportion equation
   2,728,430 : 4,547,109 = 4,547,109 : x
2. Step 2: Convert to fraction form
   2,728,430/4,547,109 = 4,547,109/x
3. Step 3: Cross multiply
   2,728,430x = 4,547,109 × 4,547,109
4. Step 4: Simplify right side
   2,728,430x = 20,676,200,257,881
5. Step 5: Solve for x
   x = 20,676,200,257,881/2,728,430
6. Step 6: Final answer
   x = 7,578,057.81