Finding the Third Proportional to 1,403,559 and 2,131,606

Step by Step Solution

1. Step 1: Write the proportion equation
   1,403,559 : 2,131,606 = 2,131,606 : x
2. Step 2: Convert to fraction form
   1,403,559/2,131,606 = 2,131,606/x
3. Step 3: Cross multiply
   1,403,559x = 2,131,606 × 2,131,606
4. Step 4: Simplify right side
   1,403,559x = 4,543,744,139,236
5. Step 5: Solve for x
   x = 4,543,744,139,236/1,403,559
6. Step 6: Final answer
   x = 3,237,301.84