Finding the Third Proportional to 8,242,286 and 12,116,468

Step by Step Solution

1. Step 1: Write the proportion equation
   8,242,286 : 12,116,468 = 12,116,468 : x
2. Step 2: Convert to fraction form
   8,242,286/12,116,468 = 12,116,468/x
3. Step 3: Cross multiply
   8,242,286x = 12,116,468 × 12,116,468
4. Step 4: Simplify right side
   8,242,286x = 146,808,796,795,024
5. Step 5: Solve for x
   x = 146,808,796,795,024/8,242,286
6. Step 6: Final answer
   x = 17,811,660.11