Finding the Third Proportional to 245,997 and 540,427.50

Step by Step Solution

1. Step 1: Write the proportion equation
   245,997 : 540,427.50 = 540,427.50 : x
2. Step 2: Convert to fraction form
   245,997/540,427.50 = 540,427.50/x
3. Step 3: Cross multiply
   245,997x = 540,427.50 × 540,427.50
4. Step 4: Simplify right side
   245,997x = 292,061,882,756.25
5. Step 5: Solve for x
   x = 292,061,882,756.25/245,997
6. Step 6: Final answer
   x = 1,187,257.90