Finding the Third Proportional to 8,399,112 and 17,987,880

Step by Step Solution

1. Step 1: Write the proportion equation
   8,399,112 : 17,987,880 = 17,987,880 : x
2. Step 2: Convert to fraction form
   8,399,112/17,987,880 = 17,987,880/x
3. Step 3: Cross multiply
   8,399,112x = 17,987,880 × 17,987,880
4. Step 4: Simplify right side
   8,399,112x = 323,563,826,894,400
5. Step 5: Solve for x
   x = 323,563,826,894,400/8,399,112
6. Step 6: Final answer
   x = 38,523,575.69