Finding the Third Proportional to 785,072 and 1,245,147

Step by Step Solution

1. Step 1: Write the proportion equation
   785,072 : 1,245,147 = 1,245,147 : x
2. Step 2: Convert to fraction form
   785,072/1,245,147 = 1,245,147/x
3. Step 3: Cross multiply
   785,072x = 1,245,147 × 1,245,147
4. Step 4: Simplify right side
   785,072x = 1,550,391,051,609
5. Step 5: Solve for x
   x = 1,550,391,051,609/785,072
6. Step 6: Final answer
   x = 1,974,839.32