Finding the Third Proportional to 1,620,672 and 3,552,360

Step by Step Solution

1. Step 1: Write the proportion equation
   1,620,672 : 3,552,360 = 3,552,360 : x
2. Step 2: Convert to fraction form
   1,620,672/3,552,360 = 3,552,360/x
3. Step 3: Cross multiply
   1,620,672x = 3,552,360 × 3,552,360
4. Step 4: Simplify right side
   1,620,672x = 12,619,261,569,600
5. Step 5: Solve for x
   x = 12,619,261,569,600/1,620,672
6. Step 6: Final answer
   x = 7,786,437.71