Finding the Third Proportional to 2,305,398 and 5,009,478

Step by Step Solution

1. Step 1: Write the proportion equation
   2,305,398 : 5,009,478 = 5,009,478 : x
2. Step 2: Convert to fraction form
   2,305,398/5,009,478 = 5,009,478/x
3. Step 3: Cross multiply
   2,305,398x = 5,009,478 × 5,009,478
4. Step 4: Simplify right side
   2,305,398x = 25,094,869,832,484
5. Step 5: Solve for x
   x = 25,094,869,832,484/2,305,398
6. Step 6: Final answer
   x = 10,885,265.73