Finding the Third Proportional to 505,452 and 758,415.75

Step by Step Solution

1. Step 1: Write the proportion equation
   505,452 : 758,415.75 = 758,415.75 : x
2. Step 2: Convert to fraction form
   505,452/758,415.75 = 758,415.75/x
3. Step 3: Cross multiply
   505,452x = 758,415.75 × 758,415.75
4. Step 4: Simplify right side
   505,452x = 575,194,449,848.06
5. Step 5: Solve for x
   x = 575,194,449,848.06/505,452
6. Step 6: Final answer
   x = 1,137,980.36