Finding the Third Proportional to 4,262,457 and 9,131,442

Step by Step Solution

1. Step 1: Write the proportion equation
   4,262,457 : 9,131,442 = 9,131,442 : x
2. Step 2: Convert to fraction form
   4,262,457/9,131,442 = 9,131,442/x
3. Step 3: Cross multiply
   4,262,457x = 9,131,442 × 9,131,442
4. Step 4: Simplify right side
   4,262,457x = 83,383,232,999,364
5. Step 5: Solve for x
   x = 83,383,232,999,364/4,262,457
6. Step 6: Final answer
   x = 19,562,246.14