Finding the Third Proportional to 1,663,740 and 3,406,176

Step by Step Solution

1. Step 1: Write the proportion equation
   1,663,740 : 3,406,176 = 3,406,176 : x
2. Step 2: Convert to fraction form
   1,663,740/3,406,176 = 3,406,176/x
3. Step 3: Cross multiply
   1,663,740x = 3,406,176 × 3,406,176
4. Step 4: Simplify right side
   1,663,740x = 11,602,034,942,976
5. Step 5: Solve for x
   x = 11,602,034,942,976/1,663,740
6. Step 6: Final answer
   x = 6,973,466.37