Finding the Third Proportional to 1,399,238 and 2,160,696

Step by Step Solution

1. Step 1: Write the proportion equation
   1,399,238 : 2,160,696 = 2,160,696 : x
2. Step 2: Convert to fraction form
   1,399,238/2,160,696 = 2,160,696/x
3. Step 3: Cross multiply
   1,399,238x = 2,160,696 × 2,160,696
4. Step 4: Simplify right side
   1,399,238x = 4,668,607,204,416
5. Step 5: Solve for x
   x = 4,668,607,204,416/1,399,238
6. Step 6: Final answer
   x = 3,336,535.46