Finding the Third Proportional to 992,408 and 2,152,851

Step by Step Solution

1. Step 1: Write the proportion equation
   992,408 : 2,152,851 = 2,152,851 : x
2. Step 2: Convert to fraction form
   992,408/2,152,851 = 2,152,851/x
3. Step 3: Cross multiply
   992,408x = 2,152,851 × 2,152,851
4. Step 4: Simplify right side
   992,408x = 4,634,767,428,201
5. Step 5: Solve for x
   x = 4,634,767,428,201/992,408
6. Step 6: Final answer
   x = 4,670,223.77