Finding the Third Proportional to 3,939,958 and 8,627,248

Step by Step Solution

1. Step 1: Write the proportion equation
   3,939,958 : 8,627,248 = 8,627,248 : x
2. Step 2: Convert to fraction form
   3,939,958/8,627,248 = 8,627,248/x
3. Step 3: Cross multiply
   3,939,958x = 8,627,248 × 8,627,248
4. Step 4: Simplify right side
   3,939,958x = 74,429,408,053,504
5. Step 5: Solve for x
   x = 74,429,408,053,504/3,939,958
6. Step 6: Final answer
   x = 18,890,914.08