Finding the Third Proportional to 3,924,680 and 8,416,718

Step by Step Solution

1. Step 1: Write the proportion equation
   3,924,680 : 8,416,718 = 8,416,718 : x
2. Step 2: Convert to fraction form
   3,924,680/8,416,718 = 8,416,718/x
3. Step 3: Cross multiply
   3,924,680x = 8,416,718 × 8,416,718
4. Step 4: Simplify right side
   3,924,680x = 70,841,141,891,524
5. Step 5: Solve for x
   x = 70,841,141,891,524/3,924,680
6. Step 6: Final answer
   x = 18,050,170.18