Finding the Third Proportional to 153,300 and 239,260.50

Step by Step Solution

1. Step 1: Write the proportion equation
   153,300 : 239,260.50 = 239,260.50 : x
2. Step 2: Convert to fraction form
   153,300/239,260.50 = 239,260.50/x
3. Step 3: Cross multiply
   153,300x = 239,260.50 × 239,260.50
4. Step 4: Simplify right side
   153,300x = 57,245,586,860.25
5. Step 5: Solve for x
   x = 57,245,586,860.25/153,300
6. Step 6: Final answer
   x = 373,421.96