Finding the Third Proportional to 4,191,990 and 8,981,574

Step by Step Solution

1. Step 1: Write the proportion equation
   4,191,990 : 8,981,574 = 8,981,574 : x
2. Step 2: Convert to fraction form
   4,191,990/8,981,574 = 8,981,574/x
3. Step 3: Cross multiply
   4,191,990x = 8,981,574 × 8,981,574
4. Step 4: Simplify right side
   4,191,990x = 80,668,671,517,476
5. Step 5: Solve for x
   x = 80,668,671,517,476/4,191,990
6. Step 6: Final answer
   x = 19,243,526.71