Finding the Third Proportional to 654,807 and 978,177

Step by Step Solution

1. Step 1: Write the proportion equation
   654,807 : 978,177 = 978,177 : x
2. Step 2: Convert to fraction form
   654,807/978,177 = 978,177/x
3. Step 3: Cross multiply
   654,807x = 978,177 × 978,177
4. Step 4: Simplify right side
   654,807x = 956,830,243,329
5. Step 5: Solve for x
   x = 956,830,243,329/654,807
6. Step 6: Final answer
   x = 1,461,240.10