Finding the Third Proportional to 992,418 and 2,152,872

Step by Step Solution

1. Step 1: Write the proportion equation
   992,418 : 2,152,872 = 2,152,872 : x
2. Step 2: Convert to fraction form
   992,418/2,152,872 = 2,152,872/x
3. Step 3: Cross multiply
   992,418x = 2,152,872 × 2,152,872
4. Step 4: Simplify right side
   992,418x = 4,634,857,848,384
5. Step 5: Solve for x
   x = 4,634,857,848,384/992,418
6. Step 6: Final answer
   x = 4,670,267.82