Finding the Third Proportional to 4,189,251 and 9,039,818

Step by Step Solution

1. Step 1: Write the proportion equation
   4,189,251 : 9,039,818 = 9,039,818 : x
2. Step 2: Convert to fraction form
   4,189,251/9,039,818 = 9,039,818/x
3. Step 3: Cross multiply
   4,189,251x = 9,039,818 × 9,039,818
4. Step 4: Simplify right side
   4,189,251x = 81,718,309,473,124
5. Step 5: Solve for x
   x = 81,718,309,473,124/4,189,251
6. Step 6: Final answer
   x = 19,506,663.48