Finding the Third Proportional to 9,972,996 and 21,837,684

Step by Step Solution

1. Step 1: Write the proportion equation
   9,972,996 : 21,837,684 = 21,837,684 : x
2. Step 2: Convert to fraction form
   9,972,996/21,837,684 = 21,837,684/x
3. Step 3: Cross multiply
   9,972,996x = 21,837,684 × 21,837,684
4. Step 4: Simplify right side
   9,972,996x = 476,884,442,483,856
5. Step 5: Solve for x
   x = 476,884,442,483,856/9,972,996
6. Step 6: Final answer
   x = 47,817,570.82