Finding the Third Proportional to 3,953,898 and 8,632,905

Step by Step Solution

1. Step 1: Write the proportion equation
   3,953,898 : 8,632,905 = 8,632,905 : x
2. Step 2: Convert to fraction form
   3,953,898/8,632,905 = 8,632,905/x
3. Step 3: Cross multiply
   3,953,898x = 8,632,905 × 8,632,905
4. Step 4: Simplify right side
   3,953,898x = 74,527,048,739,025
5. Step 5: Solve for x
   x = 74,527,048,739,025/3,953,898
6. Step 6: Final answer
   x = 18,849,006.41