Finding the Third Proportional to 115,434 and 275,098.50

Step by Step Solution

1. Step 1: Write the proportion equation
   115,434 : 275,098.50 = 275,098.50 : x
2. Step 2: Convert to fraction form
   115,434/275,098.50 = 275,098.50/x
3. Step 3: Cross multiply
   115,434x = 275,098.50 × 275,098.50
4. Step 4: Simplify right side
   115,434x = 75,679,184,702.25
5. Step 5: Solve for x
   x = 75,679,184,702.25/115,434
6. Step 6: Final answer
   x = 655,605.67