Finding the Third Proportional to 5,579,964 and 7,897,823

Step by Step Solution

1. Step 1: Write the proportion equation
   5,579,964 : 7,897,823 = 7,897,823 : x
2. Step 2: Convert to fraction form
   5,579,964/7,897,823 = 7,897,823/x
3. Step 3: Cross multiply
   5,579,964x = 7,897,823 × 7,897,823
4. Step 4: Simplify right side
   5,579,964x = 62,375,608,139,329
5. Step 5: Solve for x
   x = 62,375,608,139,329/5,579,964
6. Step 6: Final answer
   x = 11,178,496.52