Finding the Third Proportional to 155,958.50 and 236,139

Step by Step Solution

1. Step 1: Write the proportion equation
   155,958.50 : 236,139 = 236,139 : x
2. Step 2: Convert to fraction form
   155,958.50/236,139 = 236,139/x
3. Step 3: Cross multiply
   155,958.50x = 236,139 × 236,139
4. Step 4: Simplify right side
   155,958.50x = 55,761,627,321
5. Step 5: Solve for x
   x = 55,761,627,321/155,958.50
6. Step 6: Final answer
   x = 357,541.44