Finding the Third Proportional to 727,182 and 978,210

Step by Step Solution

1. Step 1: Write the proportion equation
   727,182 : 978,210 = 978,210 : x
2. Step 2: Convert to fraction form
   727,182/978,210 = 978,210/x
3. Step 3: Cross multiply
   727,182x = 978,210 × 978,210
4. Step 4: Simplify right side
   727,182x = 956,894,804,100
5. Step 5: Solve for x
   x = 956,894,804,100/727,182
6. Step 6: Final answer
   x = 1,315,894.51