Finding the Third Proportional to 140,959.50 and 293,580

Step by Step Solution

1. Step 1: Write the proportion equation
   140,959.50 : 293,580 = 293,580 : x
2. Step 2: Convert to fraction form
   140,959.50/293,580 = 293,580/x
3. Step 3: Cross multiply
   140,959.50x = 293,580 × 293,580
4. Step 4: Simplify right side
   140,959.50x = 86,189,216,400
5. Step 5: Solve for x
   x = 86,189,216,400/140,959.50
6. Step 6: Final answer
   x = 611,446.67