Finding the Third Proportional to 2,658,900 and 3,987,349

Step by Step Solution

1. Step 1: Write the proportion equation
   2,658,900 : 3,987,349 = 3,987,349 : x
2. Step 2: Convert to fraction form
   2,658,900/3,987,349 = 3,987,349/x
3. Step 3: Cross multiply
   2,658,900x = 3,987,349 × 3,987,349
4. Step 4: Simplify right side
   2,658,900x = 15,898,952,047,801
5. Step 5: Solve for x
   x = 15,898,952,047,801/2,658,900
6. Step 6: Final answer
   x = 5,979,522.38