Finding the Third Proportional to 1,503,939 and 3,131,817

Step by Step Solution

1. Step 1: Write the proportion equation
   1,503,939 : 3,131,817 = 3,131,817 : x
2. Step 2: Convert to fraction form
   1,503,939/3,131,817 = 3,131,817/x
3. Step 3: Cross multiply
   1,503,939x = 3,131,817 × 3,131,817
4. Step 4: Simplify right side
   1,503,939x = 9,808,277,721,489
5. Step 5: Solve for x
   x = 9,808,277,721,489/1,503,939
6. Step 6: Final answer
   x = 6,521,725.76