Finding the Third Proportional to 4,658,717 and 9,543,318

Step by Step Solution

1. Step 1: Write the proportion equation
   4,658,717 : 9,543,318 = 9,543,318 : x
2. Step 2: Convert to fraction form
   4,658,717/9,543,318 = 9,543,318/x
3. Step 3: Cross multiply
   4,658,717x = 9,543,318 × 9,543,318
4. Step 4: Simplify right side
   4,658,717x = 91,074,918,449,124
5. Step 5: Solve for x
   x = 91,074,918,449,124/4,658,717
6. Step 6: Final answer
   x = 19,549,356.28