Finding the Third Proportional to 3,989,193 and 8,818,194

Step by Step Solution

1. Step 1: Write the proportion equation
   3,989,193 : 8,818,194 = 8,818,194 : x
2. Step 2: Convert to fraction form
   3,989,193/8,818,194 = 8,818,194/x
3. Step 3: Cross multiply
   3,989,193x = 8,818,194 × 8,818,194
4. Step 4: Simplify right side
   3,989,193x = 77,760,545,421,636
5. Step 5: Solve for x
   x = 77,760,545,421,636/3,989,193
6. Step 6: Final answer
   x = 19,492,801.03