Finding the Third Proportional to 580,147.31 and 1,245,997.69

Step by Step Solution

1. Step 1: Write the proportion equation
   580,147.31 : 1,245,997.69 = 1,245,997.69 : x
2. Step 2: Convert to fraction form
   580,147.31/1,245,997.69 = 1,245,997.69/x
3. Step 3: Cross multiply
   580,147.31x = 1,245,997.69 × 1,245,997.69
4. Step 4: Simplify right side
   580,147.31x = 1,552,510,237,255.35
5. Step 5: Solve for x
   x = 1,552,510,237,255.35/580,147.31
6. Step 6: Final answer
   x = 2,676,062.10