Finding the Third Proportional to 1,403,561 and 2,131,609

Step by Step Solution

1. Step 1: Write the proportion equation
   1,403,561 : 2,131,609 = 2,131,609 : x
2. Step 2: Convert to fraction form
   1,403,561/2,131,609 = 2,131,609/x
3. Step 3: Cross multiply
   1,403,561x = 2,131,609 × 2,131,609
4. Step 4: Simplify right side
   1,403,561x = 4,543,756,928,881
5. Step 5: Solve for x
   x = 4,543,756,928,881/1,403,561
6. Step 6: Final answer
   x = 3,237,306.34