Finding the Third Proportional to 1,640,270 and 2,208,122

Step by Step Solution

1. Step 1: Write the proportion equation
   1,640,270 : 2,208,122 = 2,208,122 : x
2. Step 2: Convert to fraction form
   1,640,270/2,208,122 = 2,208,122/x
3. Step 3: Cross multiply
   1,640,270x = 2,208,122 × 2,208,122
4. Step 4: Simplify right side
   1,640,270x = 4,875,802,766,884
5. Step 5: Solve for x
   x = 4,875,802,766,884/1,640,270
6. Step 6: Final answer
   x = 2,972,561.08