Finding the Third Proportional to 1,521,469 and 3,212,703

Step by Step Solution

1. Step 1: Write the proportion equation
   1,521,469 : 3,212,703 = 3,212,703 : x
2. Step 2: Convert to fraction form
   1,521,469/3,212,703 = 3,212,703/x
3. Step 3: Cross multiply
   1,521,469x = 3,212,703 × 3,212,703
4. Step 4: Simplify right side
   1,521,469x = 10,321,460,566,209
5. Step 5: Solve for x
   x = 10,321,460,566,209/1,521,469
6. Step 6: Final answer
   x = 6,783,878.32