Finding the Third Proportional to 8,815,756.50 and 13,356,697.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,815,756.50 : 13,356,697.50 = 13,356,697.50 : x
2. Step 2: Convert to fraction form
   8,815,756.50/13,356,697.50 = 13,356,697.50/x
3. Step 3: Cross multiply
   8,815,756.50x = 13,356,697.50 × 13,356,697.50
4. Step 4: Simplify right side
   8,815,756.50x = 178,401,368,106,506.25
5. Step 5: Solve for x
   x = 178,401,368,106,506.25/8,815,756.50
6. Step 6: Final answer
   x = 20,236,648.79