Finding the Third Proportional to 8,458,672 and 13,619,708

Step by Step Solution

1. Step 1: Write the proportion equation
   8,458,672 : 13,619,708 = 13,619,708 : x
2. Step 2: Convert to fraction form
   8,458,672/13,619,708 = 13,619,708/x
3. Step 3: Cross multiply
   8,458,672x = 13,619,708 × 13,619,708
4. Step 4: Simplify right side
   8,458,672x = 185,496,446,005,264
5. Step 5: Solve for x
   x = 185,496,446,005,264/8,458,672
6. Step 6: Final answer
   x = 21,929,736.25