Finding the Third Proportional to 3,664,658 and 7,897,319

Step by Step Solution

1. Step 1: Write the proportion equation
   3,664,658 : 7,897,319 = 7,897,319 : x
2. Step 2: Convert to fraction form
   3,664,658/7,897,319 = 7,897,319/x
3. Step 3: Cross multiply
   3,664,658x = 7,897,319 × 7,897,319
4. Step 4: Simplify right side
   3,664,658x = 62,367,647,387,761
5. Step 5: Solve for x
   x = 62,367,647,387,761/3,664,658
6. Step 6: Final answer
   x = 17,018,681.52