Finding the Third Proportional to 8,873,780 and 13,631,216.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,873,780 : 13,631,216.50 = 13,631,216.50 : x
2. Step 2: Convert to fraction form
   8,873,780/13,631,216.50 = 13,631,216.50/x
3. Step 3: Cross multiply
   8,873,780x = 13,631,216.50 × 13,631,216.50
4. Step 4: Simplify right side
   8,873,780x = 185,810,063,269,872.25
5. Step 5: Solve for x
   x = 185,810,063,269,872.25/8,873,780
6. Step 6: Final answer
   x = 20,939,223.56