Finding the Third Proportional to 9,955,456 and 21,275,584

Step by Step Solution

1. Step 1: Write the proportion equation
   9,955,456 : 21,275,584 = 21,275,584 : x
2. Step 2: Convert to fraction form
   9,955,456/21,275,584 = 21,275,584/x
3. Step 3: Cross multiply
   9,955,456x = 21,275,584 × 21,275,584
4. Step 4: Simplify right side
   9,955,456x = 452,650,474,541,056
5. Step 5: Solve for x
   x = 452,650,474,541,056/9,955,456
6. Step 6: Final answer
   x = 45,467,578.23