Finding the Third Proportional to 8,657,513 and 13,457,834

Step by Step Solution

1. Step 1: Write the proportion equation
   8,657,513 : 13,457,834 = 13,457,834 : x
2. Step 2: Convert to fraction form
   8,657,513/13,457,834 = 13,457,834/x
3. Step 3: Cross multiply
   8,657,513x = 13,457,834 × 13,457,834
4. Step 4: Simplify right side
   8,657,513x = 181,113,295,971,556
5. Step 5: Solve for x
   x = 181,113,295,971,556/8,657,513
6. Step 6: Final answer
   x = 20,919,783.31