Finding the Third Proportional to 2,133,909 and 4,070,988

Step by Step Solution

1. Step 1: Write the proportion equation
   2,133,909 : 4,070,988 = 4,070,988 : x
2. Step 2: Convert to fraction form
   2,133,909/4,070,988 = 4,070,988/x
3. Step 3: Cross multiply
   2,133,909x = 4,070,988 × 4,070,988
4. Step 4: Simplify right side
   2,133,909x = 16,572,943,296,144
5. Step 5: Solve for x
   x = 16,572,943,296,144/2,133,909
6. Step 6: Final answer
   x = 7,766,471.44