Finding the Third Proportional to 5,225,596.50 and 10,661,145

Step by Step Solution

1. Step 1: Write the proportion equation
   5,225,596.50 : 10,661,145 = 10,661,145 : x
2. Step 2: Convert to fraction form
   5,225,596.50/10,661,145 = 10,661,145/x
3. Step 3: Cross multiply
   5,225,596.50x = 10,661,145 × 10,661,145
4. Step 4: Simplify right side
   5,225,596.50x = 113,660,012,711,025
5. Step 5: Solve for x
   x = 113,660,012,711,025/5,225,596.50
6. Step 6: Final answer
   x = 21,750,629.37