Finding the Third Proportional to 4,659,792 and 9,967,416

Step by Step Solution

1. Step 1: Write the proportion equation
   4,659,792 : 9,967,416 = 9,967,416 : x
2. Step 2: Convert to fraction form
   4,659,792/9,967,416 = 9,967,416/x
3. Step 3: Cross multiply
   4,659,792x = 9,967,416 × 9,967,416
4. Step 4: Simplify right side
   4,659,792x = 99,349,381,717,056
5. Step 5: Solve for x
   x = 99,349,381,717,056/4,659,792
6. Step 6: Final answer
   x = 21,320,561.46