Finding the Third Proportional to 4,062,108 and 8,921,257

Step by Step Solution

1. Step 1: Write the proportion equation
   4,062,108 : 8,921,257 = 8,921,257 : x
2. Step 2: Convert to fraction form
   4,062,108/8,921,257 = 8,921,257/x
3. Step 3: Cross multiply
   4,062,108x = 8,921,257 × 8,921,257
4. Step 4: Simplify right side
   4,062,108x = 79,588,826,460,049
5. Step 5: Solve for x
   x = 79,588,826,460,049/4,062,108
6. Step 6: Final answer
   x = 19,592,986.32