Finding the Third Proportional to 1,939,656 and 4,215,054

Step by Step Solution

1. Step 1: Write the proportion equation
   1,939,656 : 4,215,054 = 4,215,054 : x
2. Step 2: Convert to fraction form
   1,939,656/4,215,054 = 4,215,054/x
3. Step 3: Cross multiply
   1,939,656x = 4,215,054 × 4,215,054
4. Step 4: Simplify right side
   1,939,656x = 17,766,680,222,916
5. Step 5: Solve for x
   x = 17,766,680,222,916/1,939,656
6. Step 6: Final answer
   x = 9,159,706.78