Finding the Third Proportional to 9,229,152 and 19,877,640

Step by Step Solution

1. Step 1: Write the proportion equation
   9,229,152 : 19,877,640 = 19,877,640 : x
2. Step 2: Convert to fraction form
   9,229,152/19,877,640 = 19,877,640/x
3. Step 3: Cross multiply
   9,229,152x = 19,877,640 × 19,877,640
4. Step 4: Simplify right side
   9,229,152x = 395,120,571,969,600
5. Step 5: Solve for x
   x = 395,120,571,969,600/9,229,152
6. Step 6: Final answer
   x = 42,812,229.33