Finding the Third Proportional to 1,638,430 and 3,564,450

Step by Step Solution

1. Step 1: Write the proportion equation
   1,638,430 : 3,564,450 = 3,564,450 : x
2. Step 2: Convert to fraction form
   1,638,430/3,564,450 = 3,564,450/x
3. Step 3: Cross multiply
   1,638,430x = 3,564,450 × 3,564,450
4. Step 4: Simplify right side
   1,638,430x = 12,705,303,802,500
5. Step 5: Solve for x
   x = 12,705,303,802,500/1,638,430
6. Step 6: Final answer
   x = 7,754,560.04