Finding the Third Proportional to 3,929,342 and 8,684,548

Step by Step Solution

1. Step 1: Write the proportion equation
   3,929,342 : 8,684,548 = 8,684,548 : x
2. Step 2: Convert to fraction form
   3,929,342/8,684,548 = 8,684,548/x
3. Step 3: Cross multiply
   3,929,342x = 8,684,548 × 8,684,548
4. Step 4: Simplify right side
   3,929,342x = 75,421,373,964,304
5. Step 5: Solve for x
   x = 75,421,373,964,304/3,929,342
6. Step 6: Final answer
   x = 19,194,403.02