Finding the Third Proportional to 1,964,690 and 4,342,312

Step by Step Solution

1. Step 1: Write the proportion equation
   1,964,690 : 4,342,312 = 4,342,312 : x
2. Step 2: Convert to fraction form
   1,964,690/4,342,312 = 4,342,312/x
3. Step 3: Cross multiply
   1,964,690x = 4,342,312 × 4,342,312
4. Step 4: Simplify right side
   1,964,690x = 18,855,673,505,344
5. Step 5: Solve for x
   x = 18,855,673,505,344/1,964,690
6. Step 6: Final answer
   x = 9,597,276.67