Finding the Third Proportional to 442,516.50 and 978,049.13

Step by Step Solution

1. Step 1: Write the proportion equation
   442,516.50 : 978,049.13 = 978,049.13 : x
2. Step 2: Convert to fraction form
   442,516.50/978,049.13 = 978,049.13/x
3. Step 3: Cross multiply
   442,516.50x = 978,049.13 × 978,049.13
4. Step 4: Simplify right side
   442,516.50x = 956,580,090,913.27
5. Step 5: Solve for x
   x = 956,580,090,913.27/442,516.50
6. Step 6: Final answer
   x = 2,161,682.31