Finding the Third Proportional to 9,967,280 and 21,821,536

Step by Step Solution

1. Step 1: Write the proportion equation
   9,967,280 : 21,821,536 = 21,821,536 : x
2. Step 2: Convert to fraction form
   9,967,280/21,821,536 = 21,821,536/x
3. Step 3: Cross multiply
   9,967,280x = 21,821,536 × 21,821,536
4. Step 4: Simplify right side
   9,967,280x = 476,179,433,399,296
5. Step 5: Solve for x
   x = 476,179,433,399,296/9,967,280
6. Step 6: Final answer
   x = 47,774,260.72