Finding the Third Proportional to 8,216,746.50 and 12,822,546

Step by Step Solution

1. Step 1: Write the proportion equation
   8,216,746.50 : 12,822,546 = 12,822,546 : x
2. Step 2: Convert to fraction form
   8,216,746.50/12,822,546 = 12,822,546/x
3. Step 3: Cross multiply
   8,216,746.50x = 12,822,546 × 12,822,546
4. Step 4: Simplify right side
   8,216,746.50x = 164,417,685,922,116
5. Step 5: Solve for x
   x = 164,417,685,922,116/8,216,746.50
6. Step 6: Final answer
   x = 20,010,071.62