Finding the Third Proportional to 5,216,236 and 7,979,251

Step by Step Solution

1. Step 1: Write the proportion equation
   5,216,236 : 7,979,251 = 7,979,251 : x
2. Step 2: Convert to fraction form
   5,216,236/7,979,251 = 7,979,251/x
3. Step 3: Cross multiply
   5,216,236x = 7,979,251 × 7,979,251
4. Step 4: Simplify right side
   5,216,236x = 63,668,446,521,001
5. Step 5: Solve for x
   x = 63,668,446,521,001/5,216,236
6. Step 6: Final answer
   x = 12,205,821.69