Finding the Third Proportional to 1,338,318 and 1,907,709

Step by Step Solution

1. Step 1: Write the proportion equation
   1,338,318 : 1,907,709 = 1,907,709 : x
2. Step 2: Convert to fraction form
   1,338,318/1,907,709 = 1,907,709/x
3. Step 3: Cross multiply
   1,338,318x = 1,907,709 × 1,907,709
4. Step 4: Simplify right side
   1,338,318x = 3,639,353,628,681
5. Step 5: Solve for x
   x = 3,639,353,628,681/1,338,318
6. Step 6: Final answer
   x = 2,719,348.94