Finding the Third Proportional to 1,915,508 and 4,190,008

Step by Step Solution

1. Step 1: Write the proportion equation
   1,915,508 : 4,190,008 = 4,190,008 : x
2. Step 2: Convert to fraction form
   1,915,508/4,190,008 = 4,190,008/x
3. Step 3: Cross multiply
   1,915,508x = 4,190,008 × 4,190,008
4. Step 4: Simplify right side
   1,915,508x = 17,556,167,040,064
5. Step 5: Solve for x
   x = 17,556,167,040,064/1,915,508
6. Step 6: Final answer
   x = 9,165,279.94