Finding the Third Proportional to 4,081,408 and 8,897,688

Step by Step Solution

1. Step 1: Write the proportion equation
   4,081,408 : 8,897,688 = 8,897,688 : x
2. Step 2: Convert to fraction form
   4,081,408/8,897,688 = 8,897,688/x
3. Step 3: Cross multiply
   4,081,408x = 8,897,688 × 8,897,688
4. Step 4: Simplify right side
   4,081,408x = 79,168,851,745,344
5. Step 5: Solve for x
   x = 79,168,851,745,344/4,081,408
6. Step 6: Final answer
   x = 19,397,436.31