Finding the Third Proportional to 2,530,181.25 and 5,509,608.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,530,181.25 : 5,509,608.75 = 5,509,608.75 : x
2. Step 2: Convert to fraction form
   2,530,181.25/5,509,608.75 = 5,509,608.75/x
3. Step 3: Cross multiply
   2,530,181.25x = 5,509,608.75 × 5,509,608.75
4. Step 4: Simplify right side
   2,530,181.25x = 30,355,788,578,076.56
5. Step 5: Solve for x
   x = 30,355,788,578,076.56/2,530,181.25
6. Step 6: Final answer
   x = 11,997,475.90