Finding the Third Proportional to 111,327.75 and 262,539.56

Step by Step Solution

1. Step 1: Write the proportion equation
   111,327.75 : 262,539.56 = 262,539.56 : x
2. Step 2: Convert to fraction form
   111,327.75/262,539.56 = 262,539.56/x
3. Step 3: Cross multiply
   111,327.75x = 262,539.56 × 262,539.56
4. Step 4: Simplify right side
   111,327.75x = 68,927,021,877.69
5. Step 5: Solve for x
   x = 68,927,021,877.69/111,327.75
6. Step 6: Final answer
   x = 619,136.04