Finding the Third Proportional to 1,399,620 and 2,099,066

Step by Step Solution

1. Step 1: Write the proportion equation
   1,399,620 : 2,099,066 = 2,099,066 : x
2. Step 2: Convert to fraction form
   1,399,620/2,099,066 = 2,099,066/x
3. Step 3: Cross multiply
   1,399,620x = 2,099,066 × 2,099,066
4. Step 4: Simplify right side
   1,399,620x = 4,406,078,072,356
5. Step 5: Solve for x
   x = 4,406,078,072,356/1,399,620
6. Step 6: Final answer
   x = 3,148,053.09