Finding the Third Proportional to 126,615.50 and 193,139

Step by Step Solution

1. Step 1: Write the proportion equation
   126,615.50 : 193,139 = 193,139 : x
2. Step 2: Convert to fraction form
   126,615.50/193,139 = 193,139/x
3. Step 3: Cross multiply
   126,615.50x = 193,139 × 193,139
4. Step 4: Simplify right side
   126,615.50x = 37,302,673,321
5. Step 5: Solve for x
   x = 37,302,673,321/126,615.50
6. Step 6: Final answer
   x = 294,613.80