Finding the Third Proportional to 10,427,258 and 21,807,916

Step by Step Solution

1. Step 1: Write the proportion equation
   10,427,258 : 21,807,916 = 21,807,916 : x
2. Step 2: Convert to fraction form
   10,427,258/21,807,916 = 21,807,916/x
3. Step 3: Cross multiply
   10,427,258x = 21,807,916 × 21,807,916
4. Step 4: Simplify right side
   10,427,258x = 475,585,200,263,056
5. Step 5: Solve for x
   x = 475,585,200,263,056/10,427,258
6. Step 6: Final answer
   x = 45,609,804.64