Finding the Third Proportional to 620,105.63 and 1,328,774.63

Step by Step Solution

1. Step 1: Write the proportion equation
   620,105.63 : 1,328,774.63 = 1,328,774.63 : x
2. Step 2: Convert to fraction form
   620,105.63/1,328,774.63 = 1,328,774.63/x
3. Step 3: Cross multiply
   620,105.63x = 1,328,774.63 × 1,328,774.63
4. Step 4: Simplify right side
   620,105.63x = 1,765,642,004,043.89
5. Step 5: Solve for x
   x = 1,765,642,004,043.89/620,105.63
6. Step 6: Final answer
   x = 2,847,324.61