Finding the Third Proportional to 8,684,496 and 12,774,132

Step by Step Solution

1. Step 1: Write the proportion equation
   8,684,496 : 12,774,132 = 12,774,132 : x
2. Step 2: Convert to fraction form
   8,684,496/12,774,132 = 12,774,132/x
3. Step 3: Cross multiply
   8,684,496x = 12,774,132 × 12,774,132
4. Step 4: Simplify right side
   8,684,496x = 163,178,448,353,424
5. Step 5: Solve for x
   x = 163,178,448,353,424/8,684,496
6. Step 6: Final answer
   x = 18,789,627.90