Finding the Third Proportional to 1,688,640 and 3,584,544

Step by Step Solution

1. Step 1: Write the proportion equation
   1,688,640 : 3,584,544 = 3,584,544 : x
2. Step 2: Convert to fraction form
   1,688,640/3,584,544 = 3,584,544/x
3. Step 3: Cross multiply
   1,688,640x = 3,584,544 × 3,584,544
4. Step 4: Simplify right side
   1,688,640x = 12,848,955,687,936
5. Step 5: Solve for x
   x = 12,848,955,687,936/1,688,640
6. Step 6: Final answer
   x = 7,609,055.62