Finding the Third Proportional to 4,648,512 and 10,120,128

Step by Step Solution

1. Step 1: Write the proportion equation
   4,648,512 : 10,120,128 = 10,120,128 : x
2. Step 2: Convert to fraction form
   4,648,512/10,120,128 = 10,120,128/x
3. Step 3: Cross multiply
   4,648,512x = 10,120,128 × 10,120,128
4. Step 4: Simplify right side
   4,648,512x = 102,416,990,736,384
5. Step 5: Solve for x
   x = 102,416,990,736,384/4,648,512
6. Step 6: Final answer
   x = 22,032,209.61