Finding the Third Proportional to 3,842,730 and 8,279,271

Step by Step Solution

1. Step 1: Write the proportion equation
   3,842,730 : 8,279,271 = 8,279,271 : x
2. Step 2: Convert to fraction form
   3,842,730/8,279,271 = 8,279,271/x
3. Step 3: Cross multiply
   3,842,730x = 8,279,271 × 8,279,271
4. Step 4: Simplify right side
   3,842,730x = 68,546,328,291,441
5. Step 5: Solve for x
   x = 68,546,328,291,441/3,842,730
6. Step 6: Final answer
   x = 17,837,924.68