Finding the Third Proportional to 10,256,258 and 21,885,412

Step by Step Solution

1. Step 1: Write the proportion equation
   10,256,258 : 21,885,412 = 21,885,412 : x
2. Step 2: Convert to fraction form
   10,256,258/21,885,412 = 21,885,412/x
3. Step 3: Cross multiply
   10,256,258x = 21,885,412 × 21,885,412
4. Step 4: Simplify right side
   10,256,258x = 478,971,258,409,744
5. Step 5: Solve for x
   x = 478,971,258,409,744/10,256,258
6. Step 6: Final answer
   x = 46,700,390.96