Finding the Third Proportional to 4,516,560 and 9,942,912

Step by Step Solution

1. Step 1: Write the proportion equation
   4,516,560 : 9,942,912 = 9,942,912 : x
2. Step 2: Convert to fraction form
   4,516,560/9,942,912 = 9,942,912/x
3. Step 3: Cross multiply
   4,516,560x = 9,942,912 × 9,942,912
4. Step 4: Simplify right side
   4,516,560x = 98,861,499,039,744
5. Step 5: Solve for x
   x = 98,861,499,039,744/4,516,560
6. Step 6: Final answer
   x = 21,888,671.70