Finding the Third Proportional to 9,821,882 and 21,427,868

Step by Step Solution

1. Step 1: Write the proportion equation
   9,821,882 : 21,427,868 = 21,427,868 : x
2. Step 2: Convert to fraction form
   9,821,882/21,427,868 = 21,427,868/x
3. Step 3: Cross multiply
   9,821,882x = 21,427,868 × 21,427,868
4. Step 4: Simplify right side
   9,821,882x = 459,153,527,025,424
5. Step 5: Solve for x
   x = 459,153,527,025,424/9,821,882
6. Step 6: Final answer
   x = 46,748,019.07