Finding the Third Proportional to 978,550.88 and 1,378,022.63

Step by Step Solution

1. Step 1: Write the proportion equation
   978,550.88 : 1,378,022.63 = 1,378,022.63 : x
2. Step 2: Convert to fraction form
   978,550.88/1,378,022.63 = 1,378,022.63/x
3. Step 3: Cross multiply
   978,550.88x = 1,378,022.63 × 1,378,022.63
4. Step 4: Simplify right side
   978,550.88x = 1,898,946,355,011.89
5. Step 5: Solve for x
   x = 1,898,946,355,011.89/978,550.88
6. Step 6: Final answer
   x = 1,940,569.88