Finding the Third Proportional to 4,082,990 and 8,913,076

Step by Step Solution

1. Step 1: Write the proportion equation
   4,082,990 : 8,913,076 = 8,913,076 : x
2. Step 2: Convert to fraction form
   4,082,990/8,913,076 = 8,913,076/x
3. Step 3: Cross multiply
   4,082,990x = 8,913,076 × 8,913,076
4. Step 4: Simplify right side
   4,082,990x = 79,442,923,781,776
5. Step 5: Solve for x
   x = 79,442,923,781,776/4,082,990
6. Step 6: Final answer
   x = 19,457,045.89