Finding the Third Proportional to 455,861 and 978,182

Step by Step Solution

1. Step 1: Write the proportion equation
   455,861 : 978,182 = 978,182 : x
2. Step 2: Convert to fraction form
   455,861/978,182 = 978,182/x
3. Step 3: Cross multiply
   455,861x = 978,182 × 978,182
4. Step 4: Simplify right side
   455,861x = 956,840,025,124
5. Step 5: Solve for x
   x = 956,840,025,124/455,861
6. Step 6: Final answer
   x = 2,098,973.21