Finding the Third Proportional to 1,338,876 and 1,872,666

Step by Step Solution

1. Step 1: Write the proportion equation
   1,338,876 : 1,872,666 = 1,872,666 : x
2. Step 2: Convert to fraction form
   1,338,876/1,872,666 = 1,872,666/x
3. Step 3: Cross multiply
   1,338,876x = 1,872,666 × 1,872,666
4. Step 4: Simplify right side
   1,338,876x = 3,506,877,947,556
5. Step 5: Solve for x
   x = 3,506,877,947,556/1,338,876
6. Step 6: Final answer
   x = 2,619,270.15