Finding the Third Proportional to 5,371,311 and 10,468,518

Step by Step Solution

1. Step 1: Write the proportion equation
   5,371,311 : 10,468,518 = 10,468,518 : x
2. Step 2: Convert to fraction form
   5,371,311/10,468,518 = 10,468,518/x
3. Step 3: Cross multiply
   5,371,311x = 10,468,518 × 10,468,518
4. Step 4: Simplify right side
   5,371,311x = 109,589,869,116,324
5. Step 5: Solve for x
   x = 109,589,869,116,324/5,371,311
6. Step 6: Final answer
   x = 20,402,815.83