Finding the Third Proportional to 978,503 and 1,377,948

Step by Step Solution

1. Step 1: Write the proportion equation
   978,503 : 1,377,948 = 1,377,948 : x
2. Step 2: Convert to fraction form
   978,503/1,377,948 = 1,377,948/x
3. Step 3: Cross multiply
   978,503x = 1,377,948 × 1,377,948
4. Step 4: Simplify right side
   978,503x = 1,898,740,690,704
5. Step 5: Solve for x
   x = 1,898,740,690,704/978,503
6. Step 6: Final answer
   x = 1,940,454.64