Finding the Third Proportional to 978,489 and 1,377,927

Step by Step Solution

1. Step 1: Write the proportion equation
   978,489 : 1,377,927 = 1,377,927 : x
2. Step 2: Convert to fraction form
   978,489/1,377,927 = 1,377,927/x
3. Step 3: Cross multiply
   978,489x = 1,377,927 × 1,377,927
4. Step 4: Simplify right side
   978,489x = 1,898,682,817,329
5. Step 5: Solve for x
   x = 1,898,682,817,329/978,489
6. Step 6: Final answer
   x = 1,940,423.26