Finding the Third Proportional to 1,606,428 and 3,378,520

Step by Step Solution

1. Step 1: Write the proportion equation
   1,606,428 : 3,378,520 = 3,378,520 : x
2. Step 2: Convert to fraction form
   1,606,428/3,378,520 = 3,378,520/x
3. Step 3: Cross multiply
   1,606,428x = 3,378,520 × 3,378,520
4. Step 4: Simplify right side
   1,606,428x = 11,414,397,390,400
5. Step 5: Solve for x
   x = 11,414,397,390,400/1,606,428
6. Step 6: Final answer
   x = 7,105,452.21