Finding the Third Proportional to 654,851 and 978,243

Step by Step Solution

1. Step 1: Write the proportion equation
   654,851 : 978,243 = 978,243 : x
2. Step 2: Convert to fraction form
   654,851/978,243 = 978,243/x
3. Step 3: Cross multiply
   654,851x = 978,243 × 978,243
4. Step 4: Simplify right side
   654,851x = 956,959,367,049
5. Step 5: Solve for x
   x = 956,959,367,049/654,851
6. Step 6: Final answer
   x = 1,461,339.09