Finding the Third Proportional to 453,730 and 978,170

Step by Step Solution

1. Step 1: Write the proportion equation
   453,730 : 978,170 = 978,170 : x
2. Step 2: Convert to fraction form
   453,730/978,170 = 978,170/x
3. Step 3: Cross multiply
   453,730x = 978,170 × 978,170
4. Step 4: Simplify right side
   453,730x = 956,816,548,900
5. Step 5: Solve for x
   x = 956,816,548,900/453,730
6. Step 6: Final answer
   x = 2,108,779.56