Finding the Third Proportional to 785,108 and 1,245,243

Step by Step Solution

1. Step 1: Write the proportion equation
   785,108 : 1,245,243 = 1,245,243 : x
2. Step 2: Convert to fraction form
   785,108/1,245,243 = 1,245,243/x
3. Step 3: Cross multiply
   785,108x = 1,245,243 × 1,245,243
4. Step 4: Simplify right side
   785,108x = 1,550,630,129,049
5. Step 5: Solve for x
   x = 1,550,630,129,049/785,108
6. Step 6: Final answer
   x = 1,975,053.28