Finding the Third Proportional to 978,528 and 1,377,978

Step by Step Solution

1. Step 1: Write the proportion equation
   978,528 : 1,377,978 = 1,377,978 : x
2. Step 2: Convert to fraction form
   978,528/1,377,978 = 1,377,978/x
3. Step 3: Cross multiply
   978,528x = 1,377,978 × 1,377,978
4. Step 4: Simplify right side
   978,528x = 1,898,823,368,484
5. Step 5: Solve for x
   x = 1,898,823,368,484/978,528
6. Step 6: Final answer
   x = 1,940,489.56