Finding the Third Proportional to 8,815,822 and 13,622,688

Step by Step Solution

1. Step 1: Write the proportion equation
   8,815,822 : 13,622,688 = 13,622,688 : x
2. Step 2: Convert to fraction form
   8,815,822/13,622,688 = 13,622,688/x
3. Step 3: Cross multiply
   8,815,822x = 13,622,688 × 13,622,688
4. Step 4: Simplify right side
   8,815,822x = 185,577,628,345,344
5. Step 5: Solve for x
   x = 185,577,628,345,344/8,815,822
6. Step 6: Final answer
   x = 21,050,518.98