Finding the Third Proportional to 4,327,992 and 9,408,312

Step by Step Solution

1. Step 1: Write the proportion equation
   4,327,992 : 9,408,312 = 9,408,312 : x
2. Step 2: Convert to fraction form
   4,327,992/9,408,312 = 9,408,312/x
3. Step 3: Cross multiply
   4,327,992x = 9,408,312 × 9,408,312
4. Step 4: Simplify right side
   4,327,992x = 88,516,334,689,344
5. Step 5: Solve for x
   x = 88,516,334,689,344/4,327,992
6. Step 6: Final answer
   x = 20,452,055.99