Finding the Third Proportional to 992,420 and 2,152,876

Step by Step Solution

1. Step 1: Write the proportion equation
   992,420 : 2,152,876 = 2,152,876 : x
2. Step 2: Convert to fraction form
   992,420/2,152,876 = 2,152,876/x
3. Step 3: Cross multiply
   992,420x = 2,152,876 × 2,152,876
4. Step 4: Simplify right side
   992,420x = 4,634,875,071,376
5. Step 5: Solve for x
   x = 4,634,875,071,376/992,420
6. Step 6: Final answer
   x = 4,670,275.76