Finding the Third Proportional to 4,240,520 and 9,227,536

Step by Step Solution

1. Step 1: Write the proportion equation
   4,240,520 : 9,227,536 = 9,227,536 : x
2. Step 2: Convert to fraction form
   4,240,520/9,227,536 = 9,227,536/x
3. Step 3: Cross multiply
   4,240,520x = 9,227,536 × 9,227,536
4. Step 4: Simplify right side
   4,240,520x = 85,147,420,631,296
5. Step 5: Solve for x
   x = 85,147,420,631,296/4,240,520
6. Step 6: Final answer
   x = 20,079,476.25