Finding the Third Proportional to 12,015,910.50 and 18,617,581.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,015,910.50 : 18,617,581.50 = 18,617,581.50 : x
2. Step 2: Convert to fraction form
   12,015,910.50/18,617,581.50 = 18,617,581.50/x
3. Step 3: Cross multiply
   12,015,910.50x = 18,617,581.50 × 18,617,581.50
4. Step 4: Simplify right side
   12,015,910.50x = 346,614,340,909,142.25
5. Step 5: Solve for x
   x = 346,614,340,909,142.25/12,015,910.50
6. Step 6: Final answer
   x = 28,846,281.85