Finding the Third Proportional to 654,805 and 978,175

Step by Step Solution

1. Step 1: Write the proportion equation
   654,805 : 978,175 = 978,175 : x
2. Step 2: Convert to fraction form
   654,805/978,175 = 978,175/x
3. Step 3: Cross multiply
   654,805x = 978,175 × 978,175
4. Step 4: Simplify right side
   654,805x = 956,826,330,625
5. Step 5: Solve for x
   x = 956,826,330,625/654,805
6. Step 6: Final answer
   x = 1,461,238.58