Finding the Third Proportional to 50,159.50 and 67,139

Step by Step Solution

1. Step 1: Write the proportion equation
   50,159.50 : 67,139 = 67,139 : x
2. Step 2: Convert to fraction form
   50,159.50/67,139 = 67,139/x
3. Step 3: Cross multiply
   50,159.50x = 67,139 × 67,139
4. Step 4: Simplify right side
   50,159.50x = 4,507,645,321
5. Step 5: Solve for x
   x = 4,507,645,321/50,159.50
6. Step 6: Final answer
   x = 89,866.23