Finding the Third Proportional to 1,988,454 and 3,110,640

Step by Step Solution

1. Step 1: Write the proportion equation
   1,988,454 : 3,110,640 = 3,110,640 : x
2. Step 2: Convert to fraction form
   1,988,454/3,110,640 = 3,110,640/x
3. Step 3: Cross multiply
   1,988,454x = 3,110,640 × 3,110,640
4. Step 4: Simplify right side
   1,988,454x = 9,676,081,209,600
5. Step 5: Solve for x
   x = 9,676,081,209,600/1,988,454
6. Step 6: Final answer
   x = 4,866,132.79