Finding the Third Proportional to 124,852.50 and 275,155.50

Step by Step Solution

1. Step 1: Write the proportion equation
   124,852.50 : 275,155.50 = 275,155.50 : x
2. Step 2: Convert to fraction form
   124,852.50/275,155.50 = 275,155.50/x
3. Step 3: Cross multiply
   124,852.50x = 275,155.50 × 275,155.50
4. Step 4: Simplify right side
   124,852.50x = 75,710,549,180.25
5. Step 5: Solve for x
   x = 75,710,549,180.25/124,852.50
6. Step 6: Final answer
   x = 606,399.95