Finding the Third Proportional to 1,659,778 and 3,380,464

Step by Step Solution

1. Step 1: Write the proportion equation
   1,659,778 : 3,380,464 = 3,380,464 : x
2. Step 2: Convert to fraction form
   1,659,778/3,380,464 = 3,380,464/x
3. Step 3: Cross multiply
   1,659,778x = 3,380,464 × 3,380,464
4. Step 4: Simplify right side
   1,659,778x = 11,427,536,855,296
5. Step 5: Solve for x
   x = 11,427,536,855,296/1,659,778
6. Step 6: Final answer
   x = 6,884,979.11