Finding the Third Proportional to 2,555,428.50 and 5,629,365

Step by Step Solution

1. Step 1: Write the proportion equation
   2,555,428.50 : 5,629,365 = 5,629,365 : x
2. Step 2: Convert to fraction form
   2,555,428.50/5,629,365 = 5,629,365/x
3. Step 3: Cross multiply
   2,555,428.50x = 5,629,365 × 5,629,365
4. Step 4: Simplify right side
   2,555,428.50x = 31,689,750,303,225
5. Step 5: Solve for x
   x = 31,689,750,303,225/2,555,428.50
6. Step 6: Final answer
   x = 12,400,953.62