Finding the Third Proportional to 9,721,035 and 21,272,886

Step by Step Solution

1. Step 1: Write the proportion equation
   9,721,035 : 21,272,886 = 21,272,886 : x
2. Step 2: Convert to fraction form
   9,721,035/21,272,886 = 21,272,886/x
3. Step 3: Cross multiply
   9,721,035x = 21,272,886 × 21,272,886
4. Step 4: Simplify right side
   9,721,035x = 452,535,678,768,996
5. Step 5: Solve for x
   x = 452,535,678,768,996/9,721,035
6. Step 6: Final answer
   x = 46,552,211.65