Finding the Third Proportional to 2,090,478 and 4,579,540

Step by Step Solution

1. Step 1: Write the proportion equation
   2,090,478 : 4,579,540 = 4,579,540 : x
2. Step 2: Convert to fraction form
   2,090,478/4,579,540 = 4,579,540/x
3. Step 3: Cross multiply
   2,090,478x = 4,579,540 × 4,579,540
4. Step 4: Simplify right side
   2,090,478x = 20,972,186,611,600
5. Step 5: Solve for x
   x = 20,972,186,611,600/2,090,478
6. Step 6: Final answer
   x = 10,032,244.59