Finding the Third Proportional to 9,985,914 and 21,510,018

Step by Step Solution

1. Step 1: Write the proportion equation
   9,985,914 : 21,510,018 = 21,510,018 : x
2. Step 2: Convert to fraction form
   9,985,914/21,510,018 = 21,510,018/x
3. Step 3: Cross multiply
   9,985,914x = 21,510,018 × 21,510,018
4. Step 4: Simplify right side
   9,985,914x = 462,680,874,360,324
5. Step 5: Solve for x
   x = 462,680,874,360,324/9,985,914
6. Step 6: Final answer
   x = 46,333,352.60