Finding the Third Proportional to 8,563,919 and 12,524,322.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,563,919 : 12,524,322.50 = 12,524,322.50 : x
2. Step 2: Convert to fraction form
   8,563,919/12,524,322.50 = 12,524,322.50/x
3. Step 3: Cross multiply
   8,563,919x = 12,524,322.50 × 12,524,322.50
4. Step 4: Simplify right side
   8,563,919x = 156,858,654,084,006.25
5. Step 5: Solve for x
   x = 156,858,654,084,006.25/8,563,919
6. Step 6: Final answer
   x = 18,316,223.46