Finding the Third Proportional to 3,924,672 and 8,479,296

Step by Step Solution

1. Step 1: Write the proportion equation
   3,924,672 : 8,479,296 = 8,479,296 : x
2. Step 2: Convert to fraction form
   3,924,672/8,479,296 = 8,479,296/x
3. Step 3: Cross multiply
   3,924,672x = 8,479,296 × 8,479,296
4. Step 4: Simplify right side
   3,924,672x = 71,898,460,655,616
5. Step 5: Solve for x
   x = 71,898,460,655,616/3,924,672
6. Step 6: Final answer
   x = 18,319,610.06