Finding the Third Proportional to 978,553 and 1,378,025

Step by Step Solution

1. Step 1: Write the proportion equation
   978,553 : 1,378,025 = 1,378,025 : x
2. Step 2: Convert to fraction form
   978,553/1,378,025 = 1,378,025/x
3. Step 3: Cross multiply
   978,553x = 1,378,025 × 1,378,025
4. Step 4: Simplify right side
   978,553x = 1,898,952,900,625
5. Step 5: Solve for x
   x = 1,898,952,900,625/978,553
6. Step 6: Final answer
   x = 1,940,572.36