Finding the Third Proportional to 9,821,932 and 21,427,968

Step by Step Solution

1. Step 1: Write the proportion equation
   9,821,932 : 21,427,968 = 21,427,968 : x
2. Step 2: Convert to fraction form
   9,821,932/21,427,968 = 21,427,968/x
3. Step 3: Cross multiply
   9,821,932x = 21,427,968 × 21,427,968
4. Step 4: Simplify right side
   9,821,932x = 459,157,812,609,024
5. Step 5: Solve for x
   x = 459,157,812,609,024/9,821,932
6. Step 6: Final answer
   x = 46,748,217.42