Finding the Third Proportional to 8,815,786.50 and 13,622,638.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,815,786.50 : 13,622,638.50 = 13,622,638.50 : x
2. Step 2: Convert to fraction form
   8,815,786.50/13,622,638.50 = 13,622,638.50/x
3. Step 3: Cross multiply
   8,815,786.50x = 13,622,638.50 × 13,622,638.50
4. Step 4: Simplify right side
   8,815,786.50x = 185,576,279,701,682.25
5. Step 5: Solve for x
   x = 185,576,279,701,682.25/8,815,786.50
6. Step 6: Final answer
   x = 21,050,450.77