Finding the Third Proportional to 9,721,110 and 21,273,068

Step by Step Solution

1. Step 1: Write the proportion equation
   9,721,110 : 21,273,068 = 21,273,068 : x
2. Step 2: Convert to fraction form
   9,721,110/21,273,068 = 21,273,068/x
3. Step 3: Cross multiply
   9,721,110x = 21,273,068 × 21,273,068
4. Step 4: Simplify right side
   9,721,110x = 452,543,422,132,624
5. Step 5: Solve for x
   x = 452,543,422,132,624/9,721,110
6. Step 6: Final answer
   x = 46,552,649.04