Finding the Third Proportional to 654,819 and 978,195

Step by Step Solution

1. Step 1: Write the proportion equation
   654,819 : 978,195 = 978,195 : x
2. Step 2: Convert to fraction form
   654,819/978,195 = 978,195/x
3. Step 3: Cross multiply
   654,819x = 978,195 × 978,195
4. Step 4: Simplify right side
   654,819x = 956,865,458,025
5. Step 5: Solve for x
   x = 956,865,458,025/654,819
6. Step 6: Final answer
   x = 1,461,267.10