Finding the Third Proportional to 9,887,462 and 21,660,073

Step by Step Solution

1. Step 1: Write the proportion equation
   9,887,462 : 21,660,073 = 21,660,073 : x
2. Step 2: Convert to fraction form
   9,887,462/21,660,073 = 21,660,073/x
3. Step 3: Cross multiply
   9,887,462x = 21,660,073 × 21,660,073
4. Step 4: Simplify right side
   9,887,462x = 469,158,762,365,329
5. Step 5: Solve for x
   x = 469,158,762,365,329/9,887,462
6. Step 6: Final answer
   x = 47,449,867.56