Finding the Third Proportional to 3,945,194 and 8,499,834

Step by Step Solution

1. Step 1: Write the proportion equation
   3,945,194 : 8,499,834 = 8,499,834 : x
2. Step 2: Convert to fraction form
   3,945,194/8,499,834 = 8,499,834/x
3. Step 3: Cross multiply
   3,945,194x = 8,499,834 × 8,499,834
4. Step 4: Simplify right side
   3,945,194x = 72,247,178,027,556
5. Step 5: Solve for x
   x = 72,247,178,027,556/3,945,194
6. Step 6: Final answer
   x = 18,312,706.05