Finding the Third Proportional to 3,739,894 and 8,189,168

Step by Step Solution

1. Step 1: Write the proportion equation
   3,739,894 : 8,189,168 = 8,189,168 : x
2. Step 2: Convert to fraction form
   3,739,894/8,189,168 = 8,189,168/x
3. Step 3: Cross multiply
   3,739,894x = 8,189,168 × 8,189,168
4. Step 4: Simplify right side
   3,739,894x = 67,062,472,532,224
5. Step 5: Solve for x
   x = 67,062,472,532,224/3,739,894
6. Step 6: Final answer
   x = 17,931,650.61