Finding the Third Proportional to 72,246.50 and 174,046.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,246.50 : 174,046.50 = 174,046.50 : x
2. Step 2: Convert to fraction form
   72,246.50/174,046.50 = 174,046.50/x
3. Step 3: Cross multiply
   72,246.50x = 174,046.50 × 174,046.50
4. Step 4: Simplify right side
   72,246.50x = 30,292,184,162.25
5. Step 5: Solve for x
   x = 30,292,184,162.25/72,246.50
6. Step 6: Final answer
   x = 419,289.30