Finding the Third Proportional to 8,815,845 and 13,356,832.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,815,845 : 13,356,832.50 = 13,356,832.50 : x
2. Step 2: Convert to fraction form
   8,815,845/13,356,832.50 = 13,356,832.50/x
3. Step 3: Cross multiply
   8,815,845x = 13,356,832.50 × 13,356,832.50
4. Step 4: Simplify right side
   8,815,845x = 178,404,974,433,056.25
5. Step 5: Solve for x
   x = 178,404,974,433,056.25/8,815,845
6. Step 6: Final answer
   x = 20,236,854.71