Finding the Third Proportional to 1,139,051 and 2,505,478

Step by Step Solution

1. Step 1: Write the proportion equation
   1,139,051 : 2,505,478 = 2,505,478 : x
2. Step 2: Convert to fraction form
   1,139,051/2,505,478 = 2,505,478/x
3. Step 3: Cross multiply
   1,139,051x = 2,505,478 × 2,505,478
4. Step 4: Simplify right side
   1,139,051x = 6,277,420,008,484
5. Step 5: Solve for x
   x = 6,277,420,008,484/1,139,051
6. Step 6: Final answer
   x = 5,511,096.53