Finding the Third Proportional to 1,805,340 and 3,964,920

Step by Step Solution

1. Step 1: Write the proportion equation
   1,805,340 : 3,964,920 = 3,964,920 : x
2. Step 2: Convert to fraction form
   1,805,340/3,964,920 = 3,964,920/x
3. Step 3: Cross multiply
   1,805,340x = 3,964,920 × 3,964,920
4. Step 4: Simplify right side
   1,805,340x = 15,720,590,606,400
5. Step 5: Solve for x
   x = 15,720,590,606,400/1,805,340
6. Step 6: Final answer
   x = 8,707,828.22